BDS 6-Inch Lift Kit — Dodge/Ram 2500 / Ram 3500 SKU: BDS677FS | Ram 2500 2009–2013 / Ram 3500 2009–2012 | 4WD | Gas | 6" Front / 5" Rear | FOX 2.0 Performance Series | Leaf Springs Rear | 4-Inch Axle

A complete 6-inch suspension lift kit engineered for the 2009–2013 Dodge/Ram 2500 and 2009–2012 Ram 3500 gas 4WD — configured for the 4-inch rear axle with leaf spring rear. Gas-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 5-inch rear lift with extended U-bolts. FOX 2.0 Performance Series shocks front and rear. Clears up to 36-inch tires.

Before ordering: This kit fits 2009–2013 Ram 2500 and select 2009–2012 Ram 3500 gas 4WD models. You must measure your rear axle tube diameter before ordering — this kit is configured for the 4-inch axle. Gas engine only — diesel Ram 2500/3500 is not supported. Power Wagon owners: This kit requires sway bar link kit 122401 (sold separately) and because the Power Wagon has a factory 2-inch taller ride height, the net lift gain on a Power Wagon will be 4 inches, not 6. Rear brake lines BDS102009 will not fit 2012 or 2013 models. Some 4-inch axle models with dual overloads require U-bolt 4068 — confirm before ordering. Welding equipment, a cut-off wheel, and a grinder/sanding disc are required specialty tools — confirm your installer has these before scheduling.

Required separately (conditional):

• Sway bar link kit 122401 — required for Power Wagon models (not included)
• U-bolt 4068 — some 4-inch axle models with dual overloads; confirm before ordering
• T-case index kit 122801 (auto) or 122802 (manual) — if driveline vibration occurs after installation

Verified Fitment

Gas engine only. Diesel Ram 2500/3500 is excluded — see BDS6673FS for the diesel variant.

Component Specifications

Lift Configuration (this SKU):

Pro-Ride Coil Springs — Front:

Control Arms:

Rear Lift — Leaf Springs:

FOX 2.0 Performance Series Shocks (front and rear):

What Is and Is NOT Included

Included — Front:

• Gas-specific progressive rate Pro-Ride coil springs (pair)
• BDS-engineered lower control arms (pair — longer than stock)
• Upper control arm relocation mounting brackets
• Forged drop pitman arm
• Track bar relocation bracket
• Sway bar links (standard models)
• Bump stops
• FOX 2.0 Performance Series front shocks

Included — Rear:

• Multi-leaf progressive rate rear springs (5-inch, 4-inch axle configuration)
• Extended U-bolts
• FOX 2.0 Performance Series rear shocks

Not included (conditional — may be required):

• Sway bar link kit 122401 — required for Power Wagon models
• U-bolt 4068 — some 4-inch axle models with dual overloads may require this
• T-case index kit 122801 (auto) or 122802 (manual) — if driveline vibration occurs

Critical Compatibility

• Rear axle measurement required — 4-inch axle configuration: 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.
• 4-inch axle dual overload note: Some 4-inch axle models equipped with dual overloads will require U-bolt 4068. Confirm your rear axle configuration before ordering.
• Gas engine only: Gas-specific Pro-Ride coil springs are included. Diesel Ram 2500/3500 is not supported — see BDS6673FS for the diesel variant.
• Power Wagon applications: Power Wagon models require sway bar link kit 122401 (sold separately, not included). The Power Wagon's factory ride height is 2 inches taller than standard — net lift gain on a Power Wagon is 4 inches, not 6.
• 2012–2013 rear brake lines: BDS102009 rear brake lines will not fit 2012 or 2013 model year trucks.
• 2010 Ram 3500: The 2010 Ram 3500 does not appear in the BDS fitment data for this kit. Confirm with BDS before ordering.
• T-case index kit: Not included. If driveline vibration occurs after installation, order T-case index kit 122801 (auto) or 122802 (manual).
• R/T and Power Wagon fuel type designation: These trims appear with "ALL" fuel type. This kit is gas-specific — diesel not supported. Confirm engine before ordering.
• Welding and grinding required: Cut-off wheel or equivalent, grinder/sanding disc, and welding equipment are required specialty tools. Confirm installer capability before scheduling.
• ADAS recalibration: Required after installation. All recalibration costs are the owner's responsibility.
• Tire fitment: Clears up to 36 x 12.50-inch tires. Minor trimming may be required.

Installation Notes

Professional installation is strongly recommended. This kit is rated Moderate with an estimated installation time of 6–8 hours. Specialty tools required: cut-off wheel or equivalent, grinder/sanding disc, pitman arm puller, and welding equipment.

Verify before beginning:

• Rear axle tube diameter confirmed as 4-inch
• Dual overload check (may require U-bolt 4068)
• Engine type confirmed as gas
• Power Wagon identification (if applicable): sway bar link kit 122401 required; net lift will be 4 inches
• 2012–2013 model year (BDS102009 rear brake lines not compatible)
• Installer has welding equipment, cut-off wheel, and grinder
• ADAS recalibration appointment scheduled

Professional alignment is required after installation. Refer to the current BDS Suspension installation instructions for SKU BDS677FS for complete procedures, torque specifications, and component-specific instructions.

The Obsidian Take

The BDS677FS is the 4-inch axle variant of BDS676FS — same 2009–2013 gas Ram 2500/3500 platform, same 6-inch front / 5-inch rear lift, same FOX 2.0 shocks, same leaf spring rear benefits. The difference is the rear axle diameter the kit is dimensioned for. Measure your axle before ordering. If you have the 4-inch axle with dual overloads, confirm whether U-bolt 4068 is required — that check is specific to this axle size. Power Wagon owners still need sway bar link kit 122401 and should plan for 4 inches of net lift, not 6.

This Product Is For You If

• You own a 2009–2013 Ram 2500 or select 2009–2012 Ram 3500 gas 4WD with a confirmed 4-inch rear axle.
• You want the leaf spring rear option for reduced axle wrap, improved stability, and maintained factory payload ratings.
• You want 6 inches of front lift and 5 inches of rear lift with FOX 2.0 Performance Series shocks.
• You want up to 36-inch tire clearance.
• Power Wagon owners: you have sourced sway bar link kit 122401 and understand net lift is 4 inches.
• Your installer has welding equipment, a cut-off wheel, and a grinder.

This Product Is Not For You If

• You have not measured your rear axle tube diameter.
• Your rear axle is a 3-1/2 inch axle — see SKU BDS676FS.
• Your Ram has a diesel engine — see BDS6673FS.
• Your Ram is 2WD.
• You own a 2010 Ram 3500 — confirm with BDS before ordering.
• You are on a 2012 or 2013 model and need BDS102009 rear brake lines — they will not fit.
• Your installer does not have welding equipment or a cut-off wheel.
• You want the block rear option — see the block kit variant.
• You want NX2 Nitro Series shocks — see the NX2 variant.
• You want FOX 2.5 Performance Elite Series shocks — see the FOX 2.5 variant.

Product Family Reference

Common Questions

What is the difference between BDS677FS and BDS676FS?
The only difference is rear axle configuration. BDS677FS is for the 4-inch axle. BDS676FS is for the 3-1/2 inch axle. All other components, lift heights, shock options, and installation requirements are identical. Measure your rear axle tube before ordering.

I have a 4-inch axle with dual overloads — do I need a different U-bolt?
Some 4-inch axle models with dual overloads require U-bolt 4068. Confirm your rear axle and spring configuration before ordering.

I own a Power Wagon — what do I need to know?
Power Wagon models require sway bar link kit 122401 (not included). The Power Wagon's factory ride height is 2 inches taller than a standard Ram 2500, so net lift gain is 4 inches, not 6.

Does this kit fit the diesel Ram?
No. The Pro-Ride coil springs are gas-specific. For the diesel variant, see BDS6673FS.

Does the 2010 Ram 3500 fit?
The 2010 Ram 3500 does not appear in the BDS fitment data for this kit. Confirm compatibility with BDS before ordering.

My 2012 or 2013 model needs rear brake lines — do they fit?
BDS102009 rear brake lines will not fit 2012 or 2013 model year trucks.

What if I have driveline vibration after installation?
Order T-case index kit 122801 for automatic transmission or 122802 for manual transmission.

Does ADAS need to be recalibrated after installation?
Yes. All ADAS sensors require professional recalibration. All recalibration costs are the owner's responsibility.

Manufacturer Data Disclaimer

Fitment, 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.

Required Legal, Warning, Fitment, and Return Notices

ADAS Recalibration Warning: 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.

Power Wagon Warning: Power Wagon applications require sway bar link kit 122401, which is not included in this kit. The Power Wagon's factory ride height is 2 inches taller than standard — net lift gain on a Power Wagon is 4 inches, not 6.

Installation Warning: 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.

Rear Axle Warning: 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.

Tire Fitment Notice: 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.

California Proposition 65 Warning: 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 www.P65Warnings.ca.gov.

Return Policy: 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 Support@obsidianforgedautosupply.com 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.