Rough Country · Authorized Dealer
3 Inch Block & U-bolt Kit | Ford Bronco 4wd (1978-1979)
$79.95
Price does not include installation.
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🛠️ Install available in Marietta, GA
Installed and serviced at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Call (678) 400-6467 to schedule.
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Built for Ford Bronco 4WD owners who want to restore ride height and correct suspension sag, this 3-inch block and u-bolt kit gives you a straightforward rear-suspension upgrade. Rough Country's fabricated steel blocks are engineered to outlast cast alternatives and accommodate tires up to 33–34 inches — all while preserving your driveline geometry with tapered block design.
Installed and serviced at Road Runner Wheels & Tires. Most suspension upgrades go in the same day. Call (678) 400-6467 to schedule.
What's included
- Fabricated steel blocks (pair) — tapered design reduces driveshaft angle and prevents binding. Stronger and longer-lasting than cast blocks, with single 9/16-inch pin for factory axle-pad fitment.
- U-bolts (set) — 9/16-inch thread with 3.25-inch inside width and 10.5-inch inside length. E-coated steel resists corrosion and provides secure fastening to your rear axle.
Why customers pick this at Road Runner
- Rough Country lifetime warranty backed locally — we stand behind every kit we install.
- Two-to-three-hour install means you're back on the road fast.
- Fabricated steel construction outlasts cast blocks and handles heavy duty work year after year.
- Tapered design corrects driveline geometry — no binding, no premature wear.
- Professional installation by technicians who service these Broncos every week.
Ready to build it? Call (678) 400-6467. Hablamos Español.
Features
- Blocks
- Fabricated steel blocks are stronger and offer a longer lifespan than cast blocks.
- Tapered to reduce drive shaft angle.
- Single 9/16-inch pin blocks.
- 2.5-inches wide.
- Powder coated black.
- U-bolts
- Thread Size: 9/16-inch
- Inside Width: 3.25-inch
- Inside Length: 10.5-inch
- Style: Round
- E-coated black
- Corrosion resistant
| Years | Make | Model | Drive |
|---|---|---|---|
| 1978 | Ford | Bronco Northland | 4WD |
| 1978-1979 | Ford | Bronco Custom | 4WD |
| 1978-1979 | Ford | Bronco Ranger XLT | 4WD |
- Tire size: 33″ to 34″ tall
- Lift height: 3″
- Install time: 2 - 3 hours Installed in-house at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Alignment performed in-house as part of every lift install. Call (678) 400-6467 to schedule.
Rough Country Lifetime Replacement Warranty covers all structural components against defects in materials and workmanship for the original purchaser's lifetime ownership of the vehicle.
3-Year Finish Warranty on all painted and powder-coated surfaces.
3-Year Shock Warranty on N3, M1, and Vertex shocks against leakage and structural failure.
Warranty service is handled by Rough Country directly — call (678) 400-6467 if you need help opening a warranty claim and we'll walk you through it.
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