Summit Racing SpeedCard - learn how to get 10% back up to $100

Summit Racing SpeedCard - learn how to get 10% back up to $100

$5 Off Your $100 Mobile App Purchase!

Selected Filters


Loading...

Leaf Spring U-Bolts

Availability


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,...

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.

Individual Parts

Results 1 - 25 of 390

U Bolt, Leaf Spring, 7-5/8 in. Length, 1/2 in. Diameter, 3 in. Width, Round, Steel, Zinc Plated, Grade 8, Each

Part Number: SUM-792000

4.43 out of 5 stars ( 37 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U-Bolts, Steel, Zinc Finish, Round-Style, Front, Chevy, GMC, Set of 4

Part Number: SLF-3318

4.71 out of 5 stars ( 45 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U-Bolts, Leaf Springs, 9.625 in. Length, 2.563 in. Width, 0.562 in. Diameter, Black, Steel, Cadillac, Chevy, GMC, Pair

Part Number: RNB-929-723

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U-Bolt Repair Kit

Part Number: RNB-929-704

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U-Bolt, Leaf Spring, Round, 7 in. Length, 3.25 in. Width, Steel, Gold Iridited, Set of 4

Part Number: CLV-UR325X70

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U-Bolts, Rear Multi-Leaf Spring, Chevy, Pontiac, Pair

Part Number: OER-RL7

3.76 out of 5 stars ( 17 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Axle U-Bolt, Round Style, Steel, Black, Rear, Ford, Each

Part Number: SDK-C7ZZ-5705-LK

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Leaf Spring U-Bolts, U-Bolt Repair Kit, Round U-bolt Style, Steel, Black, 7.750 in. Length, Chevrolet, GMC, Pair

Part Number: RNB-929-707

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U Bolts, Steel, Black EDP Coated, Round 15 in Length. 3.625 in, Wide, 0.625 in Diameter, Nuts, Washers, Each

Part Number: BDX-UBT4034

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U Bolts w/ Hardware, 2015-2020 F150

Part Number: IHC-IHC-F1522-UB

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U Bolts, Steel, Black EDP Coated, Round, 12.5 in Length. 4.0 in, Wide, 0.563 in Diameter, Nuts, Washers, Each

Part Number: BDX-UBT4067

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

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: Dec 26, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 26, 2025 if ordered today

U Bolts, Steel, Black EDP Coated, Square, 15 in Length. 3.125 in, Wide, 0.563 in Diameter, Nuts, Washers, Each

Part Number: BDX-UBT4049

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

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: Dec 26, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 26, 2025 if ordered today

Axle U-Bolt, Round Style, Steel, Black, Rear, Ford, Each

Part Number: SDK-C5ZZ-5705-K

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U-Bolts, Rear Multi-Leaf Spring, Chevy, Pontiac, Pair

Part Number: OER-RL7A

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

U-Bolt, Leaf Spring, Round, 9 in. Length, 3.25 in. Width, Steel, Gold Iridited, Set of 4

Part Number: CLV-UR325X90

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

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: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

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: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

U Bolts, Leaf Spring, Square, Steel, Black, 16.00 in. Length, 5/8 in. Diameter, 2.625 in. Width, Set of 4

Part Number: ROU-7665

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

U Bolts, Leaf Spring, Round, Steel, Black, 6.75 in. Length, 1/2 in. Diameter, 2.75 in. Width, Jeep, Set of 4

Part Number: ROU-7621

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.