Leaf Spring U-Bolts

One of the unsung heroes of any leaf spring suspension upgrade, the humble leaf spring U-bolt has a very important job. The U-bolt keeps the leaf spring secure to the...

One of the unsung heroes of any leaf spring suspension upgrade, the humble leaf spring U-bolt has a very important job. The U-bolt keeps the leaf spring secure to the axle, ensuring proper axle position and maintaining the right suspension geometry and driveline angles.

Yet it’s easy to overlook the need for replacing or upgrading the leaf spring U-bolts in your suspension system. Unless of course, you’re running a modified suspension or non-stock front or rear axle. In those cases, you may need longer or wider leaf spring U-bolts to fit. For instance, adding lift blocks or lowering blocks to your axle could demand 4-inch, 8-inch or even longer leaf spring U-bolts. That’s because the U-bolt will have to compensate for the block, demanding extra length on the leaf spring U-bolt, so you still have enough thread length to secure the U-bolt nuts.

But even if you’re not adding lowering or lift blocks, running an aftermarket spring pack may require longer leaf spring U-bolts too, particularly if the spring pack features additional leaf or helper springs. Additional springs can increase the overall width of the spring pack, meaning that you may be unable to reuse the stock leaf spring U-bolts. So, if you’re upgrading leaf springs, take some measurements to determine if you’ll need new leaf spring U-bolts and, if so, how much longer those U-bolts need to be to complete your leaf spring installation.

If you’re simply swapping out stock parts for new ones, replacing your original leaf spring U-bolts may not be a bad idea either. Given their position on the vehicle, the threads on the end of your front or rear axle U-bolts are often exposed to the worst of what the road has to offer. Mud, salt, large rocks—there are plenty of road hazards that can severely damage your leaf spring U-bolt threads, or bend and distort the ends of the U-bolts entirely. Even up top where they wrap around the axle, your leaf spring U-bolts may be worn, corroded, or otherwise degraded to the point where you’ll need to replace them.

Standard or long, front or rear axle, whatever leaf spring U-bolts you need for your ride, you’ll find them right here, at Summit Racing.

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MaxTrac Suspension U-Bolts 910104

U-Bolts, Steel, Zinc Plated, 9/16 in. Diameter, 12.500 in. Length, 2.630 in. I.D. Width, Square-Style, Set of 4

Part Number: MXT-910104

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

MaxTrac Suspension U-Bolts 910101

U-Bolts, Steel, Zinc Plated, 9/16 in. Diameter, 8.750 in. Length, 2.630 in. I.D. Width, Square-Style, Set of 4

Part Number: MXT-910101

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7613

U Bolts, Leaf Spring, Round, Steel, Black, 10.50 in. Length, 5/8 in. Diameter, 3.00 in. Width, Jeep, Set of 4

Part Number: ROU-7613

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7648

U Bolts, Leaf Spring, Round, Steel, Black, 7.50 in. Length, 9/16 in. Diameter, 3.25 in. Width, Jeep, Set of 4

Part Number: ROU-7648

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7601

U Bolts, Leaf Spring, Round, Steel, Black, 6.75 in. Length, 1/2 in. Diameter, 2.50 in. Width, Jeep, Set of 4

Part Number: ROU-7601

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7608

U Bolts, Leaf Spring, Round, Steel, Black, 9.50 in. Length, 9/16 in. Diameter, 3.00 in. Width, Jeep, Set of 4

Part Number: ROU-7608

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7615

U Bolts, Leaf Spring, Round, Steel, Black, 8.50 in. Length, 5/8 in. Diameter, 3.00 in. Width, Jeep, Set of 4

Part Number: ROU-7615

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7643

U Bolts, Leaf Spring, Round, Steel, Black, 10.50 in. Length, 9/16 in. Diameter, 3.25 in. Width, Jeep, Set of 4

Part Number: ROU-7643

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7614

U Bolts, Leaf Spring, Round, Steel, Black, 11.50 in. Length, 5/8 in. Diameter, 3.50 in. Width, Jeep, Set of 4

Part Number: ROU-7614

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7618

U Bolts, Leaf Spring, Round, Steel, Black, 9.00 in. Length, 1/2 in. Diameter, 3.75 in. Width, Jeep, Set of 4

Part Number: ROU-7618

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7605

U Bolts, Leaf Spring, Round, Steel, Black, 8.50 in. Length, 9/16 in. Diameter, 3.75 in. Width, Jeep, Set of 4

Part Number: ROU-7605

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7622

U Bolts, Leaf Spring, Round, Steel, Black, 7.25 in. Length, 9/16 in. Diameter, 3.00 in. Width, Jeep, Set of 4

Part Number: ROU-7622

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7659

U Bolts, Leaf Spring, Round, Steel, Black, 13.50 in. Length, 9/16 in. Diameter, 4.125 in. Width, Jeep, Set of 4

Part Number: ROU-7659

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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Estimated Ship Date: Jan 28, 2026 if ordered today

MaxTrac Suspension U-Bolts for 1998-2009 RANGER - 910203L

U-Bolts, Steel, Zinc Plated, 9/16 in. Diameter, 10.500 in. Length, 3.310 in. I.D. Width, Round-Style, Set of 4

Part Number: MXT-910203L

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7616

U Bolts, Leaf Spring, Round, Steel, Black, 10.50 in. Length, 5/8 in. Diameter, 3.50 in. Width, Jeep, Set of 4

Part Number: ROU-7616

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7623

U Bolts, Leaf Spring, Round, Steel, Black, 9.50 in. Length, 9/16 in. Diameter, 3.25 in. Width, Jeep, Set of 4

Part Number: ROU-7623

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7630

U Bolts, Leaf Spring, Round, Steel, Black, 11.50 in. Length, 9/16 in. Diameter, 3.25 in. Width, Jeep, Set of 4

Part Number: ROU-7630

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7526

U Bolts, Leaf Spring, Round, Steel, Black, 7.5 in. Length, 1/2 in. Diameter, 2.75 in. Width, Jeep, Set of 4

Part Number: ROU-7526

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7645

U Bolts, Leaf Spring, Round, Steel, Black, 11.50 in. Length, 5/8 in. Diameter, 3.00 in. Width, Jeep, Set of 4

Part Number: ROU-7645

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7655

U Bolts, Leaf Spring, Round, Steel, Black, 10.00 in. Length, 9/16 in. Diameter, 3.625 in. Width, Jeep, Set of 4

Part Number: ROU-7655

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7658

U Bolts, Leaf Spring, Round, Steel, Black, 12.00 in. Length, 9/16 in. Diameter, 3.625 in. Width, Jeep, Set of 4

Part Number: ROU-7658

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7631

U Bolts, Leaf Spring, Round, Steel, Black, 10.00 in. Length, 9/16 in. Diameter, 2.75 in. Width, Jeep, Set of 4

Part Number: ROU-7631

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7633

U Bolts, Leaf Spring, Round, Steel, Black, 13.50 in. Length, 9/16 in. Diameter, 3.25 in. Width, Jeep, Set of 4

Part Number: ROU-7633

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

MaxTrac Suspension U-Bolts for 1997-2003 F-150, 2002-2008 RAM 1500 - 910205

U-Bolts, Steel, Zinc Plated, 9/16 in. Diameter, 13.000 in. Length, 3.310 in. I.D. Width, Round-Style, Set of 4

Part Number: MXT-910205

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Rough Country Universal Round U-Bolts for 1987-1995 WRANGLER - 7617

U Bolts, Leaf Spring, Round, Steel, Black, 12.50 in. Length, 5/8 in. Diameter, 3.625 in. Width, Jeep, Set of 4

Part Number: ROU-7617

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

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