4-Inch Lift Kit with N3 Shocks for 1978"1979 Ford Bronco 4WD
- Fits 1978-1979 Ford Bronco 4WD " Custom, Northland, and Ranger XLT submodels listed in fitment
- Kit contents: 4in coils, 7\u00b0 C-bushings, track bar drop bracket, 3 Inch Block & U-Bolt Kit, installation kit, and 4in N3 Shock Kit
- Supplied rear blocks replace the factory block; a drop pitman arm is recommended, and it must not be used with a welded-ball-joint original arm
- Factory quad-shock trucks (two front shocks per side) use a single aftermarket shock per side
- Rough Country install time estimate: 5-7 hours
Check tire fit for this kit → The manufacturer publishes 5 verified tire sizes for this kit, with wheel width, bolt pattern and offset for each.
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✓ Fits
New rear blocks replace the factory rear block. A drop pitman arm is recommended for optimum turning radius and drag link alignment. (#6602) (#6602) pitman arm will NOT work if the original arm has a welded ball joint on the end. Vehicles with factory quad shocks (2 front shocks per side) will simply use a single aftermarket shock. Fitment on this page is based on the manufacturer’s application data.
About this kit
4-Inch Lift Kit with N3 Shocks, fitment-checked
Rough Country 450.20 is a 4-inch lift kit for the 1978-1979 Ford Bronco 4WD in Custom, Northland, and Ranger XLT trim. It pairs lifted front coils, 7\u00b0 C-bushings, and a track bar drop bracket with 3-inch rear blocks and U-bolts, plus a matched 4in N3 shock kit. Rough Country estimates 5-7 hours for the install.
This 4-inch lift kit for the 1978-1979 Ford Bronco 4WD is built around lifted front coil springs, 7\u00b0 C-bushings, and a track bar drop bracket up front, with 3-inch blocks, U-bolts, and hardware handling the rear. The supplied blocks take the place of the factory rear block. Rough Country recommends a drop pitman arm for turning radius and drag link alignment, and notes that the arm will not work with an original arm carrying a welded ball joint. Broncos built with two front shocks per side run a single aftermarket shock per side instead.
What’s in the box
Kit contents
- 1× 3 Inch Block & U-Bolt Kit 6542$79.95
- 1× Installation Kit 7516
- 1× 4in Coils 9260
- 1× 7 Degreee C Bushings 6022
- 1× 4in N3 Shock Kit 145020
Priced components are sold separately here, so a worn shock or arm can be replaced on its own later.
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 450.20 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 450.20 |
| UPC / GTIN | 00843030127107 |
| Lift height | 4 in |
| Shock package | N3 series |
| Shipping weight | 98.6 lb |
| Category | Suspension & Lift Kits › Lift Kits |
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