Rough Country · Authorized Dealer
4 Inch Lift Kit | Rear Springs | Ford F-100/f-150 4wd (1977-1979)
$799.95
Price does not include installation.
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🛠️ 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 and F-150 owners who want a bold, leveled stance with real off-road capability, this 4-inch suspension lift kit delivers improved ground clearance and front-to-rear leveling in one complete system. Rough Country engineered it to eliminate factory rake while preserving driveline geometry — and it'll clear up to 35-inch tires.
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 coils engineered to raise the front end while maintaining ride comfort and handling dynamics.
- Lifted Rear Leaf Springs (qty. 2) — Double-tapered design with Teflon pad inserts for durability, load support, and consistent lift.
- 7-Degree C-Bushings — Maintain proper caster geometry and front-end alignment after the lift.
- Track Bar Drop Bracket — Corrects suspension geometry to preserve factory-like handling and steering response.
- N3 Shock Pair (Front) — Nitrogen-charged shocks with 10-stage variable valving, 18mm piston rods, and 54mm bodies for smooth on-highway ride and off-road control.
- N3 Shock Pair (Rear) — Matched pair tuned for rear-suspension performance and durability.
- U-Bolt Kit — Hardware for secure rear-spring attachment.
- Installation Hardware — Complete fastener kit for a professional install.
Why customers pick this at Road Runner
- Geometry-corrected lift — 7-degree C-bushings and track bar drop bracket ensure proper caster after installation, eliminating clunky steering and premature tire wear.
- Rough Country's Limited Lifetime Replacement Warranty backed by local service — we stand behind every kit we install.
- Professionally installed by technicians who perform these lifts weekly — proper installation is everything.
- Alignment performed in-house as part of every lift install — no trips downtown, no guessing.
- Complete system in the box — no hunting for shocks, brackets, or bushings separately.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 2 | 4in Rear Leaf Spring | Ford Bronco (78-79)/F-250 (77-79) 4WD | 8033 |
| 1 | Installation Kit | Ford Bronco (78-79) Ford F-100 (70-79) | 7516 |
| 1 | Universal U-Bolt Kit | 7643 |
| 1 | 4in Coils | Ford Bronco (78-79) Ford F-100 (70-79) | 9260 |
| 1 | 7 Degreee C Bushings | Ford Bronco (78-79) Ford F-100 (70-79) | 6022 |
| 1 | N3 Shock Pair | 23178 |
| 1 | N3 Shock Pair | 23148 |
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.
- Rear Lifted Leaf Springs: Includes application-specific rear leaf springs designed to provide dependable lift, load support, and long-lasting durability.
- 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.
| Years | Make | Model | Drive |
|---|---|---|---|
| 1977 | Ford | F-150 XLT | 4WD |
| 1977-1978 | Ford | F-150 Base | 4WD |
| 1977-1978 | Ford | F-150 Northland | 4WD |
| 1977-1979 | Ford | F-150 Custom | 4WD |
| 1977-1979 | Ford | F-150 Ranger | 4WD |
| 1977-1979 | Ford | F-150 Ranger XLT | 4WD |
| 1978-1979 | Ford | F-150 Ranger Lariat | 4WD |
- Tire size: 33″ to 35″ tall
- Lift height: 4″
| Tire | Wheel | Offset |
|---|---|---|
| 35x12.50R15 | Factory 15 | -mm |
| 35x12.50R15 | 15x8 | -19mm |
| 35x12.50R15 | 15x8 | -18mm |
| 35x12.50R15 | 15x10 | -39mm |
| 35x12.50R16 | 16x8 | -12mm |
| 35x12.50R16 | 16x8 | -6mm |
| 35x12.50R17 | 17x8.5 | +0mm |
| 35x12.50R17 | 17x8.5 | +1mm |
| 35x12.50R17 | 17x9 | -12mm |
| 35x12.50R17 | 17x9 | +0mm |
| 315/70R17 | 17x9 | +0mm |
| 35x12.50R17 | 17x9 | +1mm |
| 315/70R17 | 17x9 | +1mm |
| 35x12.50R18 | 18x9 | -12mm |
| 295/70R18 | 18x9 | -12mm |
| 35x12.50R18 | 18x9 | +0mm |
| 295/70R18 | 18x9 | +0mm |
| 35x12.50R18 | 18x9 | +1mm |
| 295/70R18 | 18x9 | +1mm |
| 35x12.50R18 | 18x10 | -25mm |
| 295/70R18 | 18x10 | -25mm |
| 35x12.50R18 | 18x10 | -19mm |
| 295/70R18 | 18x10 | -19mm |
| 35x12.50R18 | 18x10 | -18mm |
| 295/70R18 | 18x10 | -18mm |
| 35x12.50R20 | 20x9 | -12mm |
| 35x12.50R20 | 20x9 | +0mm |
| 35x11.50R20 | 20x9 | +0mm |
| 35x12.50R20 | 20x9 | +1mm |
| 35x11.50R20 | 20x9 | +1mm |
| 35x12.50R20 | 20x10 | -25mm |
| 35x12.50R20 | 20x10 | -19mm |
| 35x12.50R20 | 20x10 | -18mm |
| 35x12.50R22 | 22x10 | -25mm |
| 35x12.50R22 | 22x10 | -19mm |
| 35x12.50R22 | 22x10 | -18mm |
| 35x12.50R22 | 22x12 | -44mm |
- 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.
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