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★★★★★ 4.9 (625 Google reviews) · Marietta shop · 📞 (678) 400-6467 · 🗺️ Get Directions · Live From The Shop
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Rough Country · Authorized Dealer

4 Inch Lift Kit | Rear Springs | Dodge/plymouth Ramcharger/trailduster (1974)

Part #: 345.20UPC: 843030126452Brand: Rough Country

$899.95

Price does not include installation.

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*Estimated lease-to-own payment. Final approval and terms are determined by the lender. See all financing options →

🛠️ Install available in Marietta, GA

Installed and serviced at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Call (678) 400-6467 to schedule.

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Built for 1974 Dodge Ramcharger and Plymouth Trailduster owners who want a more aggressive stance and better ride height, this 4-inch lift kit raises the front end to match the rear for a level, flush appearance. Rough Country's leaf-spring design preserves ride quality while supporting up to 35-inch tires with proper wheel backspacing.

Installed and serviced at Road Runner Wheels & Tires. Most lift kits go in the same day. Call (678) 400-6467 to schedule.

What's included

  • Front and rear lifted leaf springs (4-inch) — raise vehicle height while maintaining factory-like ride quality and performance.
  • Dana 44 steering block (3-bolt) — keeps the steering arm at optimum angles after lifting for correct geometry and safe steering response.
  • N3 shock pair (front and rear) — premium 10-stage variable high-pressure nitrogen-charged shocks with 18mm spring-loaded piston rod and 54mm shock body for smooth highway and off-road performance.
  • Spring bushing and sleeve kit — cushions leaf-spring attachment points for durability.
  • U-bolts and hardware — secure leaf springs to axle housings.
  • Installation kit — all fasteners and brackets needed for complete assembly.

Important notes

  • Does NOT fit models with Cummins diesel engine.
  • ONLY fits models with Dana 44 front axle.
  • Rear leaf springs replace your factory-equipped block.
  • Maximum tire size is 35 inches with proper wheel backspacing.

Why customers pick this at Road Runner

  • Backed by Rough Country's Lifetime Replacement Warranty — honored locally at Road Runner.
  • Professionally installed by technicians experienced with these classic 4x4s.
  • Corrected steering geometry preserves factory-like ride and handling after lift.
  • N3 shocks tuned for both highway comfort and off-road capability.
  • All components ship together in one box — nothing to source separately.

Ready to build it? Call (678) 400-6467. Hablamos Español.

QtyPartPart #
24in Rear Leaf Spring | Dodge/Plymouth Trailduster (74-81)/W100 Truck (70-89)8034
1Universal U-Bolt Kit7604
1Sprg. Bush & Slv Kit | Dodge Ramcharger (74-93) Dodge W100 Pickup (70-89)6072
1INSTALLATION KIT7522
24in Front Leaf Spring | Dodge/Plymouth Trailduster (74-81)/W100 Truck (70-89)8003
1Steering Block | 3 Bolt | Ford F-250 4WD (1977-1979)6603
1N3 Shock Pair23275
1N3 Shock Pair23276

Features

  • Increased ground clearance
YearsMakeModelDrive
1974PlymouthTrailduster Base
  • Tire size: 33″ to 35″ tall
  • Lift height: 4″
TireWheelOffset
35x12.50R15Factory 15-mm
33x12.50R1515x8-19mm
33x12.50R1515x8-18mm
33x12.50R1515x10-39mm
295/70R1818x8.5+0mm
295/70R1818x8.5+1mm
295/70R1818x10-19mm
295/70R1818x10-18mm
35x12.50R2222x10-19mm
33x12.50R2222x10-19mm
285/55R2222x10-19mm
35x12.50R2222x10-18mm
33x12.50R2222x10-18mm
285/55R2222x10-18mm
35x12.50R2222x12-44mm
  • Install time: 6 - 8 hours
Does NOT fit models with Cummins diesel engine. ONLY fits models with Dana 44 front axle. New rear leaf springs replaces your factory equipped block.

Rough Country Lifetime Replacement Warranty covers all structural components against defects in materials and workmanship for the original purchaser's lifetime ownership of the vehicle.

3-Year Finish Warranty on all painted and powder-coated surfaces.

3-Year Shock Warranty on N3, M1, and Vertex shocks against leakage and structural failure.

Warranty service is handled by Rough Country directly — call (678) 400-6467 if you need help opening a warranty claim and we'll walk you through it.