{"product_id":"bds-6-inch-lift-kit-bds681fs-dodge-ram-2500-3500-2008-diesel-4-inch-axle","title":"BDS 6-Inch Lift Kit — Dodge Ram 2500 \/ Ram 3500 SKU: BDS681FS | Dodge Ram 2500 \/ Ram 3500 2008 | 4WD | Diesel | 6\" Front \/ 4\" Rear | FOX 2.0 Performance Series | Leaf Springs Rear | 4-Inch Axle","description":"\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp dir=\"ltr\"\u003eA complete 6-inch suspension lift kit engineered for the 2008 Dodge Ram 2500 and Ram 3500 diesel 4WD — configured for the 4-inch rear axle with leaf spring rear. Diesel-specific progressive rate Pro-Ride coil springs provide the 6-inch front lift. BDS-engineered lower control arms are longer than stock to rotate the axle for proper alignment, paired with a relocation mounting bracket to flatten the upper control arm angle. Forged drop pitman arm and track bar bracket correct steering geometry. The rear uses progressive rate multi-leaf springs for a 4-inch rear lift with extended U-bolts. FOX 2.0 Performance Series shocks front and rear. Clears up to 36-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 fits the 2008 Dodge Ram 2500 and Ram 3500 diesel 4WD only. \u003cstrong\u003eYou must measure your rear axle tube diameter before ordering — this kit is configured for the 4-inch axle.\u003c\/strong\u003e Two axle diameters exist on this generation Ram and the wrong selection results in an incompatible rear kit. This kit is diesel-specific — gas engine models are not supported. \u003cstrong\u003eIf your truck's steering gear box has been replaced and the sector shaft diameter measures approximately 1-1\/2 to 1-5\/8 inches, you must add BDS082404 to your kit.\u003c\/strong\u003e Welding equipment, a cut-off wheel, and a grinder\/sanding disc 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\u003eBDS082404 — Required if steering gear box has been replaced and sector shaft diameter is approximately 1-1\/2 to 1-5\/8 inches\u003c\/li\u003e\n\u003cli\u003eU-bolt 4068 — some 4-inch axle models with dual overloads may require this; confirm before ordering\u003c\/li\u003e\n\u003cli\u003eTransfer case drop kit (if driveline vibration occurs): 122605 (06–08 Diesel Auto) or 122606 (03–13 Diesel Auto with OE mount PN 52121938AA). Auto transmission only. Alternatively, T-case index kits 122801 (auto) or 122802 (manual).\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\u003e2008\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 2500\u003c\/td\u003e\n\u003ctd\u003eST, SXT, SLT Sport, SLT Big Horn, SLT, Laramie\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 3500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e4WD\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003ctd\u003e—\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\u003eDiesel only.\u003c\/strong\u003e Gas engine models are not supported. This kit covers the 2008 model year only — for 2003–2007, see BDS236FS (3-1\/2 inch axle) or BDS266FS (4-inch axle); for 2009–2013, see BDS6673FS.\u003c\/p\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\u003eBDS681FS\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\u003e4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear lift method\u003c\/td\u003e\n\u003ctd\u003eLeaf spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear axle configuration\u003c\/td\u003e\n\u003ctd\u003e4-inch axle\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 36 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\u003e8 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\u003eCut-off wheel or equivalent, grinder\/sanding disc, 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\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\u003eControl 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\u003eLower control arms\u003c\/td\u003e\n\u003ctd\u003eBDS-engineered — longer than stock to rotate axle for proper alignment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper control arm bracket\u003c\/td\u003e\n\u003ctd\u003eRelocation mounting bracket to flatten upper control arm angle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll four control arms\u003c\/td\u003e\n\u003ctd\u003eIncluded\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 — Leaf Springs:\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\u003eMulti-leaf, progressive rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift provided\u003c\/td\u003e\n\u003ctd\u003e4 inches (rear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle wrap\u003c\/td\u003e\n\u003ctd\u003eReduced vs. block configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload rating\u003c\/td\u003e\n\u003ctd\u003eFactory payload weight ratings maintained\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\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\u003eBDS-engineered lower control arms (pair — longer than stock)\u003c\/li\u003e\n\u003cli\u003eUpper control arm relocation mounting brackets\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 links\u003c\/li\u003e\n\u003cli\u003eBump stops\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\u003eMulti-leaf progressive rate rear springs (4-inch, 4-inch axle configuration)\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\u003eBDS082404 — Required if steering gear box has been replaced and sector shaft diameter is approximately 1-1\/2 to 1-5\/8 inches\u003c\/li\u003e\n\u003cli\u003eU-bolt 4068 — some 4-inch axle models with dual overloads may require this\u003c\/li\u003e\n\u003cli\u003eTransfer case drop kits (if driveline vibration occurs): 122605 or 122606 (auto transmission only); or T-case index kits 122801 (auto) \/ 122802 (manual)\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\u003eRear axle measurement required — 4-inch axle configuration:\u003c\/strong\u003e This kit is built for the 4-inch axle. Two rear axle diameters exist on this generation Ram. Measure your rear axle tube before ordering. The wrong axle selection results in an incompatible rear kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-inch axle dual overload note:\u003c\/strong\u003e Some 4-inch axle models equipped with dual overloads will require U-bolt 4068. Confirm your rear axle configuration before ordering.\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\u003e2008 model year only:\u003c\/strong\u003e This kit is specific to the 2008 Dodge Ram 2500 and Ram 3500. For 2003–2007, see BDS236FS or BDS266FS. For 2009–2013, see BDS6673FS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteering gear box sector shaft check:\u003c\/strong\u003e If the steering gear box has been replaced and the sector shaft diameter measures approximately 1-1\/2 to 1-5\/8 inches, BDS082404 must be added. Inspect your sector shaft before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransfer case drop kits:\u003c\/strong\u003e Not included and not required for standard installation. If driveline vibration occurs, 122605 (06–08 Diesel Auto) or 122606 (03–13 Diesel Auto with OE mount PN 52121938AA) apply for the 2008 model year. Auto transmission only. T-case index kits 122801 (auto) or 122802 (manual) are also available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.7L Diesel and dual rear shock kit:\u003c\/strong\u003e If also installing dual rear shock kit 122009, exhaust modification is required on 6.7L diesel models for that specific accessory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelding and grinding required:\u003c\/strong\u003e Cut-off wheel or equivalent, grinder\/sanding disc, and welding equipment are listed as 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\u003cli\u003e\n\u003cstrong\u003eTire fitment:\u003c\/strong\u003e Clears up to 36 x 12.50-inch tires. Minor trimming may be required.\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 8 hours. Specialty tools required: cut-off wheel or equivalent, grinder\/sanding disc, 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\u003eRear axle tube diameter confirmed as 4-inch\u003c\/li\u003e\n\u003cli\u003eDual overload check (may require U-bolt 4068)\u003c\/li\u003e\n\u003cli\u003eSteering gear box replacement and sector shaft diameter check (if replaced, measure — if 1-1\/2 to 1-5\/8 inches, add BDS082404)\u003c\/li\u003e\n\u003cli\u003eTransmission and transfer case type (relevant to T-case drop kit selection if needed)\u003c\/li\u003e\n\u003cli\u003eInstaller has welding equipment, cut-off wheel, and grinder\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 BDS681FS 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 BDS681FS is the 4-inch axle companion to BDS680FS for the 2008 Dodge Ram 2500\/3500 diesel — same platform, same lift heights, same FOX 2.0 shocks, same 8-hour installation estimate, same specialty tool requirements. The only substantive difference is the rear axle diameter. Measure before ordering. If you have the 4-inch axle with dual overloads, also confirm whether U-bolt 4068 is required — that's the one additional check specific to the 4-inch axle over the 3-1\/2 inch variant. Everything else carries over identically from BDS680FS.\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 2008 Dodge Ram 2500 or Ram 3500 diesel 4WD with a confirmed 4-inch rear axle.\u003c\/li\u003e\n\u003cli\u003eYour truck's steering gear box is factory original, or if replaced, the sector shaft is not in the 1-1\/2 to 1-5\/8 inch range (or you will add BDS082404).\u003c\/li\u003e\n\u003cli\u003eYou want the leaf spring rear option for reduced axle wrap, improved stability, and maintained factory payload ratings.\u003c\/li\u003e\n\u003cli\u003eYou want 6 inches of front lift and 4 inches of rear lift with FOX 2.0 Performance Series shocks.\u003c\/li\u003e\n\u003cli\u003eYou want up to 36-inch tire clearance.\u003c\/li\u003e\n\u003cli\u003eYour installer has welding equipment, a cut-off wheel, and a grinder.\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\u003eYou have not measured your rear axle tube diameter — wrong axle selection produces an incompatible kit.\u003c\/li\u003e\n\u003cli\u003eYour rear axle is a 3-1\/2 inch axle — see SKU BDS680FS.\u003c\/li\u003e\n\u003cli\u003eYour truck has a replaced steering gear box with a sector shaft diameter of approximately 1-1\/2 to 1-5\/8 inches and you have not added BDS082404.\u003c\/li\u003e\n\u003cli\u003eYour Ram has a gas engine.\u003c\/li\u003e\n\u003cli\u003eYour Ram is not a 2008 model year — see BDS236FS\/BDS266FS for 2003–2007; see BDS6673FS for 2009–2013.\u003c\/li\u003e\n\u003cli\u003eYour installer does not have welding equipment or a cut-off wheel.\u003c\/li\u003e\n\u003cli\u003eYou want the block rear option — see the block kit variant.\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\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eRear Option\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eAxle\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eShock\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\u003eBDS236FS\u003c\/td\u003e\n\u003ctd\u003e2003–2007\u003c\/td\u003e\n\u003ctd\u003eLeaf Springs\u003c\/td\u003e\n\u003ctd\u003e3-1\/2 Inch\u003c\/td\u003e\n\u003ctd\u003eFOX 2.0\u003c\/td\u003e\n\u003ctd\u003ePrior generation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBDS266FS\u003c\/td\u003e\n\u003ctd\u003e2003–2007\u003c\/td\u003e\n\u003ctd\u003eLeaf Springs\u003c\/td\u003e\n\u003ctd\u003e4 Inch\u003c\/td\u003e\n\u003ctd\u003eFOX 2.0\u003c\/td\u003e\n\u003ctd\u003ePrior generation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBDS680FS\u003c\/td\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eLeaf Springs\u003c\/td\u003e\n\u003ctd\u003e3-1\/2 Inch\u003c\/td\u003e\n\u003ctd\u003eFOX 2.0\u003c\/td\u003e\n\u003ctd\u003e2008 only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBDS681FS (this product)\u003c\/td\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eLeaf Springs\u003c\/td\u003e\n\u003ctd\u003e4 Inch\u003c\/td\u003e\n\u003ctd\u003eFOX 2.0\u003c\/td\u003e\n\u003ctd\u003e2008 only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlock variants\u003c\/td\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eBlock\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003eMeasure before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBDS6673FS\u003c\/td\u003e\n\u003ctd\u003e2009–2013\u003c\/td\u003e\n\u003ctd\u003eLeaf Springs\u003c\/td\u003e\n\u003ctd\u003e4 Inch\u003c\/td\u003e\n\u003ctd\u003eFOX 2.0\u003c\/td\u003e\n\u003ctd\u003eNext generation\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\u003eWhat is the difference between BDS681FS and BDS680FS?\u003c\/strong\u003e\u003cbr\u003eThe only difference is rear axle configuration. BDS681FS is for the 4-inch axle. BDS680FS is for the 3-1\/2 inch axle. All other components, lift heights, shock option, specialty tool requirements, and installation time are identical. Measure your rear axle tube before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eI have a 4-inch axle with dual overloads — do I need a different U-bolt?\u003c\/strong\u003e\u003cbr\u003eSome 4-inch axle models with dual overloads require U-bolt 4068. Inspect your rear axle and spring configuration and confirm with BDS or your installer before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDoes this kit fit 2007 or 2009 Ram models?\u003c\/strong\u003e\u003cbr\u003eNo. This kit is specific to the 2008 model year only. For 2003–2007, see BDS236FS or BDS266FS. For 2009–2013, see BDS6673FS.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat if I have driveline vibration after installation?\u003c\/strong\u003e\u003cbr\u003eFor the 2008 model year, the applicable transfer case drop kits are 122605 (06–08 Diesel Auto) or 122606 (03–13 Diesel Auto with OE mount PN 52121938AA). Both are auto transmission only. T-case index kits 122801 (auto) or 122802 (manual) are also available.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat is the sector shaft check?\u003c\/strong\u003e\u003cbr\u003eIf the steering gear box has been replaced and the sector shaft diameter measures approximately 1-1\/2 to 1-5\/8 inches, BDS082404 must be added to the kit. Inspect your sector shaft before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDoes this kit fit the gas Ram?\u003c\/strong\u003e\u003cbr\u003eNo. The Pro-Ride coil springs are diesel-specific.\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\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, a cut-off wheel or equivalent, and a grinder\/sanding disc are required specialty tools. Confirm installer capability before scheduling. A professional wheel alignment is required after installation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eRear Axle Warning:\u003c\/strong\u003e Two rear axle tube diameters exist on this generation Ram. Measure your rear axle tube before ordering. Ordering the wrong axle configuration produces an incompatible rear kit.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSteering Gear Box Warning:\u003c\/strong\u003e If the steering gear box has been replaced and the sector shaft diameter measures approximately 1-1\/2 to 1-5\/8 inches, BDS082404 must be added to this kit. Inspect your sector shaft before ordering.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eTire Fitment Notice:\u003c\/strong\u003e Up to 36 x 12.50-inch tires are supported. 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\n\u003c\/div\u003e","brand":"BDS Suspension","offers":[{"title":"Default Title","offer_id":51395821306177,"sku":"681FS","price":2929.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/BDS681FS.jpg?v=1771164964","url":"https:\/\/obsidianforgedautosupply.com\/products\/bds-6-inch-lift-kit-bds681fs-dodge-ram-2500-3500-2008-diesel-4-inch-axle","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}