4" Lift Kit - Rear Springs - Ford F-250 4WD 77-79
4 Inch Lift Kit | Rear Springs | Ford F-250 4WD (1977-1979)
Give your 77-79 Ford Super Duty an impressive upgrade, front to back with Rough Country's 4" Ford suspension lift kit! This easy-to-install lift kit increases your ground clearance to avoid any obstacles and provides a better-than-stock look that gives an improved ride height and more aggressive appearance. This kit features a set of front and rear, lifted leaf springs allowing you to gain additional ride height without sacrificing ride quality or performance.
A raised steering block and all necessary hardware is provided to keep everything at optimum angles for a factory-like ride, even after lifting. A set of Rough Country's premium N3 shocks are also included. These fine tuned 10-stage variable high-pressure nitrogen charged shocks offer a fantastic blend of off-road action and smooth highway ride quality.
With a durable 18mm spring-loaded piston rod and faster-cooling 54mm shock body. Rough Country's 4" Ford suspension lift kit comes with everything you need to fit up to a 35" tire with proper wheel backspacing. Best of all, Rough Country's 4" Ford suspension lift kit is backed by our lifetime replacement warranty.
Vehicle fitment & tire options
Vehicle fitment
- 1977-1979 Ford F-250 (4WD)
Tire / wheel / bolt pattern / offset / notes
35x12.50R18 / Factory 18 / 8x6.5/8x165.1 / - / -
35x12.50R17 / Factory 17 / 8x6.5/8x165.1 / - / -
35x12.50R16 / Factory 16 / 8x6.5/8x165.1 / - / -
35x12.50R17 / 17x8.5 / 8x6.5/8x165.1 / +0 / -
35x12.50R17 / 17x8.5 / 8x6.5/8x165.1 / +1 / -
35x12.50R17 / 17x9 / 8x6.5/8x165.1 / -12 / -
315/70R17 / 17x9 / 8x6.5/8x165.1 / -12 / -
35x12.50R17 / 17x9 / 8x6.5/8x165.1 / +0 / -
315/70R17 / 17x9 / 8x6.5/8x165.1 / +0 / -
35x12.50R17 / 17x9 / 8x6.5/8x165.1 / +1 / -
315/70R17 / 17x9 / 8x6.5/8x165.1 / +1 / -
35x12.50R18 / 18x8.5 / 8x6.5/8x165.1 / +0 / -
295/70R18 / 18x8.5 / 8x6.5/8x165.1 / +0 / -
35x12.50R18 / 18x8.5 / 8x6.5/8x165.1 / +1 / -
295/70R18 / 18x8.5 / 8x6.5/8x165.1 / +1 / -
35x12.50R18 / 18x9 / 8x6.5/8x165.1 / -12 / -
295/70R18 / 18x9 / 8x6.5/8x165.1 / -12 / -
285/75R18 / 18x9 / 8x6.5/8x165.1 / -12 / -
35x12.50R18 / 18x9 / 8x6.5/8x165.1 / +0 / -
295/70R18 / 18x9 / 8x6.5/8x165.1 / +0 / -
35x12.50R18 / 18x9 / 8x6.5/8x165.1 / +1 / -
295/70R18 / 18x9 / 8x6.5/8x165.1 / +1 / -
35x12.50R18 / 18x10 / 8x6.5/8x165.1 / -25 / -
295/70R18 / 18x10 / 8x6.5/8x165.1 / -25 / -
35x12.50R18 / 18x10 / 8x6.5/8x165.1 / -19 / -
295/70R18 / 18x10 / 8x6.5/8x165.1 / -19 / -
35x12.50R18 / 18x10 / 8x6.5/8x165.1 / -18 / -
295/70R18 / 18x10 / 8x6.5/8x165.1 / -18 / -
35x12.50R20 / 20x9 / 8x6.5/8x165.1 / -12 / -
35x11.50R20 / 20x9 / 8x6.5/8x165.1 / -12 / -
295/65R20 / 20x9 / 8x6.5/8x165.1 / -12 / -
295/60R20 / 20x9 / 8x6.5/8x165.1 / -12 / -
35x12.50R20 / 20x9 / 8x6.5/8x165.1 / +0 / -
295/60R20 / 20x9 / 8x6.5/8x165.1 / +0 / -
35x12.50R20 / 20x9 / 8x6.5/8x165.1 / +1 / -
295/60R20 / 20x9 / 8x6.5/8x165.1 / +1 / -
35x12.50R20 / 20x10 / 8x6.5/8x165.1 / -25 / Minor Trimming
35x12.50R20 / 20x10 / 8x6.5/8x165.1 / -19 / Minor Trimming
295/60R20 / 20x10 / 8x6.5/8x165.1 / -19 / Minor Trimming
35x12.50R20 / 20x10 / 8x6.5/8x165.1 / -18 / Minor Trimming
295/60R20 / 20x10 / 8x6.5/8x165.1 / -18 / Minor Trimming
35x12.50R20 / 20x12 / 8x6.5/8x165.1 / -44 / Trimming Required
35x12.50R22 / 22x10 / 8x6.5/8x165.1 / -25 / Minor Trimming
35x12.50R22 / 22x10 / 8x6.5/8x165.1 / -19 / Minor Trimming
285/55R22 / 22x10 / 8x6.5/8x165.1 / -19 / -
35x12.50R22 / 22x10 / 8x6.5/8x165.1 / -18 / Minor Trimming
285/55R22 / 22x10 / 8x6.5/8x165.1 / -18 / -
35x12.50R22 / 22x12 / 8x6.5/8x165.1 / -44 / Trimming RequiredFeatures
- Easy bolt-on installation
- Increased ground clearance
Product specifications
Product category: Susp Lift Kits 4wd
Manufacturer: Rough Country
Manufacturer part number: 505.20
UPC: 843030127466
Country of origin: India
Manufacturer-listed weight: 334.60 lbs
Product notes & installation
Models with a dana 60 front axle require dana 60 steering block. (#6608) does not fit highboy models.
Estimated installation time: 6 - 8 hours
Included components
Front components
- Lifted leaf springs
- Dana 44 steering block
- U-bolts
- Hardware
Rear components
- Lifted leaf springs
- 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.
