4 Inch Lift Kit
Rear Springs · Ford F-250 4WD (1977-1979)
$949.95the kit
In stock at Rough Country · as of Sep 19
Tell us your truck and we'll check this kit against it.
Nothing is charged online. We confirm fitment and the final price on the call.
Before you buy
Models with a Dana 60 front axle require Dana 60 steering block. (#6608) Does NOT fit highboy models.
Tires Rough Country fitted with this kit
Tested setups from the maker. Tap a tire size to shop it; a size we do not stock yet, we can quote on your call.
| Tire | Wheel | Bolt pattern | Offset | Note |
|---|---|---|---|---|
| 35x12.50R18 | Factory 18 | 8x6.5/8x165.1 | — | |
| 35x12.50R17 | Factory 17 | 8x6.5/8x165.1 | — | |
| 35x12.50R16 · not stocked yet | 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 Required |
About this kit
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 raises 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 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.
Highlights
- Easy bolt-on installation Increased ground clearance
What's in the box
- 2 × 4in Rear Leaf Spring | Ford Bronco (78-79)/F-250 (77-79) 4WD Part #8033
- 1 × Universal U-Bolt Kit Part #7627
- 1 × Universal U-Bolt Kit Part #7630
- 2 × 4in Front Leaf Spring | Ford F-250 4WD (1977-1979) Part #8013
- 1 × Steering Block | 3 Bolt | Ford F-250 4WD (1977-1979) Part #6603
- 1 × Spring Bushings | Ford F-250 (77-79) Part #6075
- 1 × N3 Shock Pair Part #23234
- 1 × N3 Shock Pair Part #23298
| Front | Lifted leaf springs Dana 44 steering block U-bolts Hardware |
|---|---|
| Rear | Lifted leaf springs U-bolts Hardware |
Specifications
| Brand | Rough Country |
|---|---|
| Part number | 505.20 |
| UPC | 843030127466 |
| Lift | 4″ |
| Shipping weight | 334.6 lb |
| Country of origin | India |
| Shipping | Ground shipping only · Arrives in more than one box |
Trucks it fits
| Truck | Years | Drive | Trims |
|---|---|---|---|
| Ford F-250 | 1977–1978 | 4WD | Base, Northland |
| Ford F-250 | 1977–1979 | 4WD | Custom, Ranger, Ranger XLT |
| Ford F-250 | 1977 | 4WD | XLT |
| Ford F-250 | 1978–1979 | 4WD | Ranger Lariat |