4 Inch Lift Kit | Rear Springs | Ford F-100 / F-150 4WD (1977-1979)
Rough Country
Rough Country

4 Inch Lift Kit | Rear Springs | Ford F-100 / F-150 4WD (1977-1979)

Product Code: RC-500-77-79.20

OVERVIEW

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. Rear Lifted Leaf Springs for Strength and Support: Engineered for dependability, the included rear leaf springs are double-tapered and feature Teflon pad inserts to improve ride comfort while offering consistent lift and added load support. 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.


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.

Install Time

5-7 hours


Fitment

  • 1977-1979 4WD Ford F-100
  • 1977-1979 4WD Ford F-150

Tire Fitment

View all 37 tire & wheel combinations
SizeWheelBolt PatternWheel OffsetNote
35x12.50R15Factory 155x5.5--
35x12.50R1515x85x5.5-19-
35x12.50R1515x85x5.5-18-
35x12.50R1515x105x5.5-39Trimming Required
35x12.50R1616x85x5.5-12-
35x12.50R1616x85x5.5-6-
35x12.50R1717x8.55x5.5+0-
35x12.50R1717x8.55x5.5+1-
35x12.50R1717x95x5.5-12-
35x12.50R1717x95x5.5+0-
315/70R1717x95x5.5+0-
35x12.50R1717x95x5.5+1-
315/70R1717x95x5.5+1-
35x12.50R1818x95x5.5-12-
295/70R1818x95x5.5-12-
35x12.50R1818x95x5.5+0-
295/70R1818x95x5.5+0-
35x12.50R1818x95x5.5+1-
295/70R1818x95x5.5+1-
35x12.50R1818x105x5.5-25-
295/70R1818x105x5.5-25-
35x12.50R1818x105x5.5-19-
295/70R1818x105x5.5-19-
35x12.50R1818x105x5.5-18-
295/70R1818x105x5.5-18-
35x12.50R2020x95x5.5-12-
35x12.50R2020x95x5.5+0-
35x11.50R2020x95x5.5+0-
35x12.50R2020x95x5.5+1-
35x11.50R2020x95x5.5+1-
35x12.50R2020x105x5.5-25Minor Trimming
35x12.50R2020x105x5.5-19Minor Trimming
35x12.50R2020x105x5.5-18Minor Trimming
35x12.50R2222x105x5.5-25Minor Trimming
35x12.50R2222x105x5.5-19Minor Trimming
35x12.50R2222x105x5.5-18Minor Trimming
35x12.50R2222x125x5.5-44Trimming Required

Sale Price CAD $1,119.95
Retail price CAD $1,119.95
This kit contains 7 products
1
N3 Shock Pair
N3 Shock Pair
Code: RC-23148
1
N3 Shock Pair
N3 Shock Pair
Code: RC-23178
1
7 Degreee C Bushings | Ford Bronco (78-79) Ford F-100 (70-79)
7 Degreee C Bushings | Ford Bronco (78-79) Ford F-100 (70-79)
Code: RC-6022
1
Installation Kit | Ford Bronco (78-79) Ford F-100 (70-79)
Installation Kit | Ford Bronco (78-79) Ford F-100 (70-79)
Code: RC-7516
1
Universal U-Bolt Kit
Universal U-Bolt Kit
Code: RC-7643
2
4in Rear Leaf Spring | Ford Bronco (78-79) / F-250 (77-79) 4WD
4in Rear Leaf Spring | Ford Bronco (78-79) / F-250 (77-79) 4WD
Code: RC-8033
1
4in Coils | Ford Bronco (78-79) Ford F-100 (70-79)
4in Coils | Ford Bronco (78-79) Ford F-100 (70-79)
Code: RC-9260