4" Lift Kit - Rear Blocks - Ford 4WD 77-79
4 Inch Lift Kit | Rear Blocks | Ford F-100/F-150 4WD (1977-1979)
Bold stance, better clearance
Transform your Ford with Rough Country's 4" suspension lift kit, delivering a more aggressive, leveled look from front to rear. This system eliminates the factory rake for a balanced stance while improving ground clearance to take on uneven terrain and off-road challenges with confidence.Performance-driven components
The kit includes a set of durable front coil springs for enhanced ride height without sacrificing comfort or performance. Application-specific 7-degree c-bushings and a track bar drop bracket maintain proper geometry and alignment, ensuring a factory-like ride quality even after lifting.Premium N3 shock absorbers
This kit features Rough Country's nitrogen-charged N3 shocks, precision-tuned with a 10-stage variable valving system, 18mm piston rods, and fast-cooling 54mm shock bodies for enhanced off-road handling and smooth highway ride quality.Ready for 35-inch tires
Gain the clearance needed to run up to 35" tires, giving your truck a more aggressive profile and increased off-road capability, all with proper wheel backspacing.Built to last
Backed by Rough Country's limited lifetime replacement warranty, this 4" Ford suspension lift kit combines rugged durability with confidence-inspiring performance, on and off the road.
Vehicle fitment & tire options
Vehicle fitment
- 1977-1979 Ford F-150 (4WD)
Tire / wheel / bolt pattern / offset / notes
35x12.50R15 / Factory 15 / 5x5.5 / - / -
33x12.50R15 / 15x10 / 5x5.5 / -39 / Trimming Required
35x12.50R18 / 18x9 / 5x5.5 / -12 / -
33x12.50R18 / 18x9 / 5x5.5 / -12 / -
295/70R18 / 18x9 / 5x5.5 / -12 / -
285/75R18 / 18x9 / 5x5.5 / -12 / -
295/70R18 / 18x10 / 5x5.5 / -25 / -
35x12.50R22 / 22x10 / 5x5.5 / -25 / Trimming RequiredFeatures
- 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.
Product specifications
Product category: Susp Lift Kits 4wd
Manufacturer: Rough Country
Manufacturer part number: 445-78-79.20
UPC: 843030127091
Country of origin: United States
Manufacturer-listed weight: 102.00 lbs
Product notes & installation
Estimated installation time: 5-7 hours
Included components
Front components
- Lifted coil springs
- Track bar drop bracket
- 7 degree c-bushings
- Hardware
Rear components
- 2" lift blocks
- U-bolts
- Hardware
Refund Policy
Returns accepted within 30 days of purchase. Items must be unused, in original packaging, and include proof of purchase. Restocking fees may apply. Non-returnable items: custom orders, electrical parts, and used products. For full details, visit our Refund Policy page.




