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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 Blocks | Dodge W200 Truck/w300 Truck 4wd (1978-1980)

Part #: 310.20UPC: 843030128081Brand: Rough Country

$569.95

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 classic Dodge W-Series owners who want the aggressive stance and ground clearance of a modern lift without sacrificing ride quality, this 4-inch lift kit combines lifted front leaf springs, a raised steering block, premium N3 shocks, and rear lift blocks to deliver a factory-like ride even after the upgrade. You'll clear up to 35-inch tires with proper wheel backspacing while maintaining the correct driveline geometry.

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 lifted leaf springs — pair of 4-inch raised springs engineered to support the added weight and maintain ride quality during both highway driving and off-road use.
  • N3 shock pair (qty 2) — premium nitrogen-charged shocks with 10-stage variable compression, 18mm piston rod, and 54mm shock body for smooth ride on and off the pavement.
  • Rear lift blocks — 3-inch blocks that raise the rear axle and work in tandem with the front springs for balanced suspension geometry.
  • Dana 44 steering block — raised steering arm block that maintains proper caster and Pitman arm angle after the lift.
  • U-bolts and hardware — complete fastener kit for spring and block attachment.
  • Spring bushings and sleeves — wear-resistant bushings that isolate the springs and extend their service life.
  • Installation kit — all brackets, shims, and miscellaneous hardware for complete assembly.

Important notes

  • Does NOT fit models equipped with Cummins diesel engines.
  • ONLY fits models with Dana 44 front axle — verify your truck's axle configuration before purchase.
  • Supports up to 35-inch tires with proper wheel backspacing — oversized tires without correct offset may cause rubbing or suspension clearance issues.

Why customers pick this at Road Runner

  • Rough Country lifetime replacement warranty backed by local service — any defect covered for the life of your truck.
  • Professionally installed by technicians who perform these lifts every week — no guesswork, just proven execution.
  • Corrected geometry after install — steering block and bushings keep caster, camber, and Pitman arm angles factory-correct, so your truck drives straight and tracks true.
  • Alignment performed in-house as part of every lift install — your truck leaves level and ready to run.

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

QtyPartPart #
1Lift Block Kit | Pair | 3 Inch | Multiple Makes & Models (Chevy/GMC/Toyota)6594
1Sprg. Bush & Slv Kit | Dodge Ramcharger (74-93) Dodge W100 Pickup (70-89)6072
1Installation Kit | Dodge Ramcharger (78-93) Dodge W100 Pickup (86-89)7520
1Universal U-Bolt Kit7603
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
1977-1993DodgeW150 Base4WD
1990-1991DodgeW150 S4WD
1978-1980DodgeW200 Base4WD
1981-1993DodgeW250 Base4WD
1981-1993DodgeW350 Base4WD
  • Tire size: 33″ to 35″ tall
  • Lift height: 4″
TireWheelOffset
35x12.50R15Factory 15-mm
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.

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.