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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 | Ford F-100/f-150 4wd (1977-1979)

Part #: 445-78-79.20UPC: 843030127091Brand: Rough Country

$499.95

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 Ford F-100/F-150 4WD owners who want a leveled stance and serious ground clearance, this 4" lift kit combines front coil springs and rear blocks to eliminate factory rake while opening up room for 35" tires. You get proper geometry correction through application-specific C-bushings and track bar positioning — plus premium N3 shocks that handle both trails and highway driving.

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

  • Lifted Coil Springs (Front) — raise the front end 4 inches while maintaining ride comfort and load capacity.
  • 2" Lift Blocks (Rear) — level the rear to match front height and eliminate the factory rake.
  • 7-Degree C-Bushings — correct caster and steering geometry after the lift to preserve factory-like handling and steering response.
  • Track Bar Drop Bracket — repositions the track bar to maintain proper suspension geometry and ride quality.
  • N3 Shock Absorbers (Pair) — Rough Country's nitrogen-charged shocks with 10-stage variable valving, 18mm piston rods, and 54mm bodies for smooth highway and off-road performance.
  • Installation Hardware — all fasteners, u-bolts, and brackets needed for a complete installation.

Why customers pick this at Road Runner

  • Geometry corrected on the lift — caster and track bar drop ensure steering feel and tire wear stay square after you're done.
  • Rough Country lifetime warranty backed locally — if anything fails, we handle the replacement.
  • Installed in-house by techs who do these every week — no dealership delays, just fast professional work.
  • Alignment performed in-house as part of every lift install — your truck leaves rolling straight.
  • Same-day installation most days — get lifted and back on the road fast.

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

QtyPartPart #
1Installation Kit | Ford F-100 (70-79) Ford F-250 (77-79)6518
1Installation Kit | Ford Bronco (78-79) Ford F-100 (70-79)7516
14in Coils | Ford Bronco (78-79) Ford F-100 (70-79)9260
17 Degreee C Bushings | Ford Bronco (78-79) Ford F-100 (70-79)6022
1N3 Shock Pair23178
1N3 Shock Pair23148

Features

  • Improved Ground Clearance: Gain the extra height needed to confidently tackle uneven terrain, obstacles, and off-road challenges.
  • Front-to-Rear Leveling: Eliminates the factory rake for a more aggressive, balanced stance and improved handling dynamics.
  • Fits 35-Inch Tires: Provides the clearance needed to run up to 35" tall tires for a more aggressive look and better trail capability.
  • Includes N3 Shock Absorbers: Equipped with Rough Country's premium N3 shocks for improved ride quality and off-road performance.
YearsMakeModelDrive
1977FordF-150 XLT4WD
1977-1978FordF-150 Base4WD
1977-1978FordF-150 Northland4WD
1977-1979FordF-150 Custom4WD
1977-1979FordF-150 Ranger4WD
1977-1979FordF-150 Ranger XLT4WD
1978-1979FordF-150 Ranger Lariat4WD
  • Tire size: 33″ to 35″ tall
  • Lift height: 4″
TireWheelOffset
35x12.50R15Factory 15-mm
33x12.50R1515x10-39mm
35x12.50R1818x9-12mm
33x12.50R1818x9-12mm
295/70R1818x9-12mm
285/75R1818x9-12mm
295/70R1818x10-25mm
35x12.50R2222x10-25mm
  • Install time: 5-7 hours

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.