{"product_id":"bds-6-inch-radius-arm-lift-kit-bds2106fs-ram-3500-2013-2018-diesel-air-ride","title":"BDS 6-Inch Radius Arm Lift Kit — Ram 3500 with Factory Rear Air Ride SKU: BDS2106FS | Ram 3500 2013–2018 | 4WD | Diesel | 6\" Front \/ 5\" Rear | FOX 2.0 Performance Series | Factory Rear Air Ride Required","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003ccode class=\"bg-text-200\/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]\"\u003e\u003c\/code\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eA complete 6-inch radius arm suspension lift kit engineered for the 2013–2018 Ram 3500 diesel 4WD — specifically for trucks equipped with the factory rear air ride suspension system. Heavy-duty tubular replacement radius arms mount in the factory location with caster adjustment and OE-style rubber bushings. Diesel-specific progressive rate Pro-Ride coil springs provide the 6-inch front lift. A transfer case indexing ring and high-clearance transmission crossmember address driveline geometry at this lift height. The rear uses a high-strength fabricated lift block with heavy-duty air bag spacers for the factory air ride system and extended U-bolts for a 5-inch rear lift. FOX 2.0 Performance Series shocks front and rear. Supports up to 37-inch tires.\u003c\/p\u003e\n\u003chr\u003e\n\u003cblockquote dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eBefore ordering:\u003c\/strong\u003e This kit is engineered for Ram 3500 trucks equipped with the \u003cstrong\u003efactory rear air ride suspension system only\u003c\/strong\u003e — it will not fit standard non-air-ride models. Diesel 4WD only. \u003cstrong\u003eConfirm your T-case bolt count before ordering:\u003c\/strong\u003e this kit ships with the standard 6-bolt indexing ring (PN 122623). If your truck has the heavy-duty 8-bolt T-case, order PN 122813 in place of 122623. If your truck has a 2-piece rear driveshaft, carrier bearing drop 122405 is required (sold separately). Some vehicles may also require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement. DRW (dual rear wheel) models: note inner wheel clearance to the upper U-bolt plate on 6-inch kits. Welding equipment and a step drill bit are required specialty tools — confirm your installer has these before scheduling.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eRequired separately (conditional):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003ePN 122813 — 8-bolt T-case indexing ring, required if equipped with heavy-duty 8-bolt T-case (replaces included PN 122623)\u003c\/li\u003e\n\u003cli\u003ePN 122405 — Carrier bearing drop, required if equipped with 2-piece rear driveshaft\u003c\/li\u003e\n\u003cli\u003ePN 122007 — Rear driveshaft spacer kit, may be required on some vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch4 dir=\"ltr\"\u003eVerified Fitment\u003c\/h4\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYear\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eMake\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eModel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eTrims\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDrive\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFuel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eRam\u003c\/td\u003e\n\u003ctd\u003e3500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eRam\u003c\/td\u003e\n\u003ctd\u003e3500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eRam\u003c\/td\u003e\n\u003ctd\u003e3500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eRam\u003c\/td\u003e\n\u003ctd\u003e3500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eRam\u003c\/td\u003e\n\u003ctd\u003e3500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eRam\u003c\/td\u003e\n\u003ctd\u003e3500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4 dir=\"ltr\"\u003eComponent Specifications\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eLift Configuration (this SKU):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eAttribute\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBDS Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eBDS2106FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront lift height\u003c\/td\u003e\n\u003ctd\u003e6 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront lift method\u003c\/td\u003e\n\u003ctd\u003eCoil spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear lift height\u003c\/td\u003e\n\u003ctd\u003e5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear lift method\u003c\/td\u003e\n\u003ctd\u003eBlock with air bag spacers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock option (this build)\u003c\/td\u003e\n\u003ctd\u003eFOX 2.0 Performance Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum tire clearance\u003c\/td\u003e\n\u003ctd\u003eUp to 37 inches (trimming may be required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEstimated install time\u003c\/td\u003e\n\u003ctd\u003e6–8 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifficulty level\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecialty tools required\u003c\/td\u003e\n\u003ctd\u003eStep drill bit, drill\/bit set, pitman arm puller, welding equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHD Radius Arms:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eAttribute\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-strength tubular steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eFactory location\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaster adjustment\u003c\/td\u003e\n\u003ctd\u003eYes — adjustable across a range of lift heights\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame bushing\u003c\/td\u003e\n\u003ctd\u003eOE-style rubber — smooth, quiet, service-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePro-Ride Coil Springs — Front:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eAttribute\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eFull-length, progressive rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eDiesel-specific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift provided\u003c\/td\u003e\n\u003ctd\u003e6 inches (front)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eRear Lift — Block with Air Bag Spacers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eAttribute\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlock type\u003c\/td\u003e\n\u003ctd\u003eHigh-strength fabricated steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir bag spacers\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty — for factory OE air ride systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift provided\u003c\/td\u003e\n\u003ctd\u003e5 inches (rear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eT-Case Indexing Ring:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eAttribute\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard kit\u003c\/td\u003e\n\u003ctd\u003e6-bolt indexing ring — PN 122623\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeavy-duty 8-bolt T-case\u003c\/td\u003e\n\u003ctd\u003eOrder PN 122813 in place of 122623\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFOX 2.0 Performance Series Shocks (front and rear):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eAttribute\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e2 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody material\u003c\/td\u003e\n\u003ctd\u003eImpact extruded aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eInternal floating piston (IFP) monotube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting ends\u003c\/td\u003e\n\u003ctd\u003eCNC machined 6061-T6 aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft\u003c\/td\u003e\n\u003ctd\u003e5\/8-inch hard chrome plated heat-treated alloy steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston\u003c\/td\u003e\n\u003ctd\u003eRace-developed high-flow design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValving\u003c\/td\u003e\n\u003ctd\u003eApplication-specific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eClear anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eRecommended Tire and Wheel Configurations (trimming may be required):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eTire Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eWheel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eBackspace\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e37 x 13.50\u003c\/td\u003e\n\u003ctd\u003e17 x 8\u003c\/td\u003e\n\u003ctd\u003e5.625 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e37 x 12.50\u003c\/td\u003e\n\u003ctd\u003e18 x 9\u003c\/td\u003e\n\u003ctd\u003e4.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35 x 12.50\u003c\/td\u003e\n\u003ctd\u003e17 x 9\u003c\/td\u003e\n\u003ctd\u003e4.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4 dir=\"ltr\"\u003eWhat Is and Is NOT Included\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eIncluded — Front:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eDiesel-specific progressive rate Pro-Ride coil springs (pair)\u003c\/li\u003e\n\u003cli\u003eHD tubular radius arms (pair)\u003c\/li\u003e\n\u003cli\u003eForged drop pitman arm\u003c\/li\u003e\n\u003cli\u003eTrack bar relocation bracket\u003c\/li\u003e\n\u003cli\u003eSway bar correction hardware\u003c\/li\u003e\n\u003cli\u003eBump stops\u003c\/li\u003e\n\u003cli\u003eBrake line brackets\u003c\/li\u003e\n\u003cli\u003eTransfer case indexing ring — 6-bolt standard (PN 122623)\u003c\/li\u003e\n\u003cli\u003eHigh-clearance transmission crossmember\u003c\/li\u003e\n\u003cli\u003eFOX 2.0 Performance Series front shocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eIncluded — Rear:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eHigh-strength fabricated 5-inch lift block\u003c\/li\u003e\n\u003cli\u003eHeavy-duty air bag spacers (for OE air ride systems)\u003c\/li\u003e\n\u003cli\u003eExtended U-bolts\u003c\/li\u003e\n\u003cli\u003eFOX 2.0 Performance Series rear shocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eNot included (conditional — may be required):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003ePN 122813 — 8-bolt T-case indexing ring (required if equipped with heavy-duty 8-bolt T-case; replaces included PN 122623)\u003c\/li\u003e\n\u003cli\u003ePN 122405 — Carrier bearing drop (required if equipped with 2-piece rear driveshaft)\u003c\/li\u003e\n\u003cli\u003ePN 122007 — Rear driveshaft spacer kit (may be required on some vehicles)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eThis kit will not fit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eRam 3500 without factory rear air ride suspension\u003c\/li\u003e\n\u003cli\u003eGas engine models\u003c\/li\u003e\n\u003cli\u003e2WD models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003eCritical Compatibility\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory rear air ride required:\u003c\/strong\u003e This kit is engineered for Ram 3500 trucks equipped with the OE factory rear air ride suspension system. It will not fit standard non-air-ride models. The rear block and air bag spacers in this kit are designed specifically for the factory air ride system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiesel only:\u003c\/strong\u003e Diesel-specific Pro-Ride coil springs are included. Gas engine models are not supported.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT-case bolt count — confirm before ordering:\u003c\/strong\u003e This kit ships with the 6-bolt indexing ring (PN 122623) as standard. If your Ram 3500 is equipped with the heavy-duty 8-bolt transfer case, order PN 122813 in place of 122623 — confirm your T-case configuration before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-piece rear driveshaft:\u003c\/strong\u003e If equipped, carrier bearing drop PN 122405 is required. Confirm your driveshaft configuration before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear driveshaft engagement:\u003c\/strong\u003e Some vehicles may require rear driveshaft spacer kit PN 122007. Confirm with BDS or your installer if driveshaft engagement is a concern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDRW models:\u003c\/strong\u003e On dual rear wheel models, inner wheel clearance to the upper U-bolt plate is a consideration on 6-inch kits. Verify clearance for your specific wheel and tire combination before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelding equipment required:\u003c\/strong\u003e Welding equipment and a step drill bit are required specialty tools. Confirm installer capability before scheduling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eADAS recalibration:\u003c\/strong\u003e Required after installation. All recalibration costs are the owner's responsibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eProfessional installation is strongly recommended. This kit is rated Moderate with an estimated installation time of 6–8 hours. Specialty tools required: step drill bit, drill\/bit set, pitman arm puller, and welding equipment. Confirm your installer has all required tools before scheduling.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eVerify before beginning:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFactory rear air ride suspension confirmed present\u003c\/li\u003e\n\u003cli\u003eT-case bolt count confirmed (6-bolt or 8-bolt)\u003c\/li\u003e\n\u003cli\u003eRear driveshaft type confirmed (2-piece requires PN 122405)\u003c\/li\u003e\n\u003cli\u003eDRW wheel and tire clearance verified if applicable\u003c\/li\u003e\n\u003cli\u003eADAS recalibration appointment scheduled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eProfessional alignment is required after installation. Refer to the current BDS Suspension installation instructions for SKU BDS2106FS for complete procedures, torque specifications, and component-specific instructions.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eThe Obsidian Take\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThe BDS2106FS fills the gap left by every other BDS 6-inch kit in this catalog — the Ram 3500 diesel with factory rear air ride. Where standard models use leaf springs or coil springs in the rear, the factory air ride Ram 3500 needs the heavy-duty air bag spacers included in this kit to maintain the OE air suspension function through the lifted ride height. The front is the same radius arm approach proven across the platform: tubular arms, diesel-specific Pro-Ride coil springs, 6-inch lift, T-case indexing, and FOX 2.0 shocks. The T-case bolt count check is the one pre-order detail unique to this kit — 6-bolt is standard, 8-bolt requires PN 122813 instead. Check the T-case configuration before the order goes in.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eThis Product Is For You If\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eYou own a 2013–2018 Ram 3500 diesel 4WD equipped with the factory rear air ride suspension system.\u003c\/li\u003e\n\u003cli\u003eYou have confirmed your T-case is 6-bolt standard (kit included) or sourced PN 122813 for the 8-bolt variant.\u003c\/li\u003e\n\u003cli\u003eYou want 6 inches of front lift and 5 inches of rear lift that maintains the factory air ride system function.\u003c\/li\u003e\n\u003cli\u003eYou want FOX 2.0 Performance Series shocks with application-specific valving.\u003c\/li\u003e\n\u003cli\u003eYou want up to 37-inch tire clearance.\u003c\/li\u003e\n\u003cli\u003eYour installer has welding equipment and a step drill bit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003eThis Product Is Not For You If\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eYour Ram 3500 does not have factory rear air ride suspension — see the standard radius arm or block kit variants.\u003c\/li\u003e\n\u003cli\u003eYour Ram 3500 has a gas engine.\u003c\/li\u003e\n\u003cli\u003eYour Ram 3500 is 2WD.\u003c\/li\u003e\n\u003cli\u003eYou have not confirmed your T-case bolt count.\u003c\/li\u003e\n\u003cli\u003eYour installer does not have welding equipment.\u003c\/li\u003e\n\u003cli\u003eYou want NX2 Nitro Series shocks — see the NX2 variant.\u003c\/li\u003e\n\u003cli\u003eYou want FOX 2.5 Performance Elite Series shocks — see the FOX 2.5 variant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003eProduct Family Reference\u003c\/h4\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePlatform\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eRear Suspension\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eLift\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eShock\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBDS2106FS (this product)\u003c\/td\u003e\n\u003ctd\u003eRam 3500 2013–2018 Diesel 4WD\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride\u003c\/td\u003e\n\u003ctd\u003e6\" Front \/ 5\" Rear\u003c\/td\u003e\n\u003ctd\u003eFOX 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNX2 variant\u003c\/td\u003e\n\u003ctd\u003eRam 3500 2013–2018 Diesel 4WD\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride\u003c\/td\u003e\n\u003ctd\u003e6\" Front \/ 5\" Rear\u003c\/td\u003e\n\u003ctd\u003eNX2 Nitro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFOX 2.5 variant\u003c\/td\u003e\n\u003ctd\u003eRam 3500 2013–2018 Diesel 4WD\u003c\/td\u003e\n\u003ctd\u003eFactory rear air ride\u003c\/td\u003e\n\u003ctd\u003e6\" Front \/ 5\" Rear\u003c\/td\u003e\n\u003ctd\u003eFOX 2.5 Elite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4 dir=\"ltr\"\u003eCommon Questions\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDoes this kit work on Ram 3500 trucks without the factory air ride?\u003c\/strong\u003e\u003cbr\u003eNo. This kit is engineered specifically for trucks with the factory OE rear air ride suspension system. The included air bag spacers and rear block are designed for that system. For standard suspension models, see the applicable BDS kit for your drivetrain and fuel type.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHow do I know if my Ram 3500 has factory rear air ride?\u003c\/strong\u003e\u003cbr\u003eFactory rear air ride is an option on certain Ram 3500 trim and package combinations. Confirm by checking your build sheet, the suspension at the rear axle, or the factory window sticker. If you are unsure, confirm with a dealer before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHow do I confirm my T-case bolt count?\u003c\/strong\u003e\u003cbr\u003eThe 6-bolt and 8-bolt transfer cases require different indexing rings. The standard kit includes PN 122623 (6-bolt). If your Ram 3500 has the heavy-duty 8-bolt T-case, order PN 122813 in place of it. Check your build sheet or have a shop inspect the T-case before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDo I need the carrier bearing drop?\u003c\/strong\u003e\u003cbr\u003eOnly if your Ram 3500 has a 2-piece rear driveshaft. Confirm your driveshaft configuration — if 2-piece, PN 122405 is required.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eI have a DRW (dually) — does this kit fit?\u003c\/strong\u003e\u003cbr\u003eDRW models are in the BDS fitment data for this kit. DRW owners should verify inner wheel clearance to the upper U-bolt plate on 6-inch kits before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDoes ADAS need to be recalibrated after installation?\u003c\/strong\u003e\u003cbr\u003eYes. All ADAS sensors require professional recalibration after installation. All recalibration costs are the owner's responsibility.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eManufacturer Data Disclaimer\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eFitment, specification, included-component, and installation data for this kit are sourced from BDS Suspension manufacturer documentation and OFAS-verified product data current as of publication. Manufacturer specifications and included components are subject to change without notice; confirm current documentation for this SKU at the time of purchase.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eRequired Legal, Warning, Fitment, and Return Notices\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFitment Notice:\u003c\/strong\u003e This kit requires the factory OE rear air ride suspension system. It will not fit Ram 3500 models without factory rear air ride. Diesel 4WD only.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eT-Case Notice:\u003c\/strong\u003e This kit ships with a 6-bolt indexing ring (PN 122623). Trucks with a heavy-duty 8-bolt transfer case must order PN 122813 in place of PN 122623. Confirm your T-case configuration before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eADAS Recalibration Warning:\u003c\/strong\u003e This kit alters vehicle ride height and suspension geometry. All advanced driver assistance system (ADAS) sensors require professional recalibration after installation. Schedule recalibration at an authorized dealer or certified ADAS service center. All recalibration costs are the owner's responsibility.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eInstallation Warning:\u003c\/strong\u003e Professional installation is strongly recommended. Welding equipment and a step drill bit are required specialty tools. A professional wheel alignment is required after installation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eTire Fitment Notice:\u003c\/strong\u003e BDS references configurations up to 37 x 13.50-inch tires. Trimming may be required. Buyer is responsible for verifying tire and wheel clearance for their specific vehicle and build.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCalifornia Proposition 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/www.P65Warnings.ca.gov\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eReturn Policy:\u003c\/strong\u003e All returns require prior authorization from Obsidian Forged Auto Supply — do not ship any product back without a Return Merchandise Authorization (RMA). To request an RMA, contact OFAS at \u003ca href=\"mailto:Support@obsidianforgedautosupply.com\"\u003eSupport@obsidianforgedautosupply.com\u003c\/a\u003e or 469-407-7538 (Monday–Friday 9am–5pm CST, Saturday 9am–3pm CST) with your order number, product SKU, return reason, and photos. Return requests must be submitted within 90 days of delivery. To qualify, the product must be new, unused, uninstalled, complete with all hardware and included components, and in original manufacturer packaging. Do not write on, tape to, or place shipping labels directly on the manufacturer's product box. Return shipping is the customer's responsibility in all cases. Non-defective returns may be subject to a 15% restocking fee. No restocking fee applies when OFAS shipped the wrong item or the return is due to a verified defect or approved damage claim. Some products — including special-order, electrical, and installed items — may be non-returnable. Return eligibility is also subject to applicable manufacturer and supplier return requirements. Approved refunds are issued to the original payment method within approximately 10 business days of the warehouse receiving and processing the returned product. For damaged, missing, or incorrect shipments, contact OFAS within 48 hours of delivery, retain all packaging, and do not install the product.\u003c\/p\u003e","brand":"BDS Suspension","offers":[{"title":"Default Title","offer_id":51395821044033,"sku":"2106FS","price":3016.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/BDS2106FS.jpg?v=1771166602","url":"https:\/\/obsidianforgedautosupply.com\/products\/bds-6-inch-radius-arm-lift-kit-bds2106fs-ram-3500-2013-2018-diesel-air-ride","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}