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Superlift U-Bolt Kits

4.5 out of 5 stars 193 Customer Reviews

Superlift Suspension Systems offers high-strength U-bolt kits for dozens of applications from the 1960s through the 1990s. These replacements will work with either a stock or aftermarket leaf spring pack. They're available in a variety of styles, lengths, widths, and diameters. Choose the kit best suited for your needs.

Results 1 - 25 of 46

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

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U-Bolts, Steel, Black, Round-Style, Front, Chevy, Dodge, GMC, Pickup, Kit

Part Number: SLF-3418

2.18 out of 5 stars ( 11 )

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Axle U-Bolt; U-Bolt; Square; 4 U-Bolts; 0.625 in. x 2.5 in. x 14 in.; w/Nuts And Washers

Part Number: SLF-11114

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

U-Bolts, Steel, Black, 5/8 in. Diameter, Round-Style, Ford/Chevy, GMC/Universal, Rear, Set of 4

Part Number: SLF-11244

4.6 out of 5 stars ( 5 )

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U-Bolts, Steel, Black, 5/8 in. Diameter, 8 in. Length, Round-Style, 3 1/8 in. Axle Tubes, Set of 4

Part Number: SLF-11184

5.0 out of 5 stars ( 1 )

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U-Bolts, Steel, Black, 5/8 in. Diameter, 8 in. Length, Round-Style, 3 3/8 in. Axle Tubes, Set

Part Number: SLF-11334

4.5 out of 5 stars ( 4 )

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U-Bolts, Steel, Black, 5/8 in. Diameter, Round-Style, Chevy, GMC/Universal, Rear, Set of 4

Part Number: SLF-11264

3.75 out of 5 stars ( 4 )

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U-Bolts, Steel, Black, 5/8 in. Diameter, Round-Style, Chevy, GMC/Universal, Rear, Set of 4

Part Number: SLF-11384

5.0 out of 5 stars ( 2 )

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U-Bolts, Steel, Black, 9/16 in. Diameter, Round-Style, Ford, Pickup, Universal, Rear, Set of 4

Part Number: SLF-10764

4.33 out of 5 stars ( 12 )

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U-Bolts, Steel, Black, Square-Style, Rear, Chevy, GMC, Pickup, Universal, Set of 4

Part Number: SLF-11004

4.45 out of 5 stars ( 11 )

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Kit 4 U-Bolts W/Nuts & Washers 9/16" x 3" x 9" Square Bend

Part Number: SLF-10604

4.54 out of 5 stars ( 13 )

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Kit 4 U-Bolts W/Nuts & Washers 9/16" x 2.5" x 7" Square Bend

Part Number: SLF-10404

4.75 out of 5 stars ( 12 )

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Kit 4 U-Bolts W/Nuts & Washers 5/8" x 2.5" x 13" Square Bend

Part Number: SLF-11104

5.0 out of 5 stars ( 5 )

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U-Bolts, Steel, Black, Square-Style, Rear, Dodge, Plymouth, Pickup, Universal, Set of 4

Part Number: SLF-10464

4.89 out of 5 stars ( 9 )

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U-Bolts, Black, 5/8 in. Diameter, 3 1/4 in. Inside Width, 14 in. Inside Length, with Nuts/Washers, Set of 4

Part Number: SLF-11794

5.0 out of 5 stars ( 1 )

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Kit 4 U-Bolts W/Nuts & Washers 5/8" x2.5" x 9" Square Bend

Part Number: SLF-10984

4.0 out of 5 stars ( 5 )

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Axle U-Bolt; U-Bolt; Square; 4 U-Bolts; 0.5625 in. x 3 in. x 11 in.; w/Nuts And Washers

Part Number: SLF-10624

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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U-Bolts, Steel, Black, 5/8 in. Diameter, Round-Style, Chevy, GMC/Universal, Rear, Set of 4

Part Number: SLF-11364

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Today

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U-Bolts, Steel, Black, Round-Style, Ford, Universal, Rear, Set of 4

Part Number: SLF-11604

4.5 out of 5 stars ( 2 )

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Kit 4 U-Bolts W/Nuts & Washers 9/16" x 2.5" x 12" Square Bend

Part Number: SLF-10504

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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U-Bolts, Steel, Black, 5/8 in. Diameter, Round-Style, Chevy, GMC/Universal, Rear, Set of 4

Part Number: SLF-11204

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

Kit 4 U-Bolts W/Nuts & Washers 5/8" x 3 5/8" x 14" Round Bend

Part Number: SLF-11644

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

U-Bolt, Steel, Black, 5/8 in. Diameter, Large Radius Style, 17 in. Length, Universal, Set of 4

Part Number: SLF-11724

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

U-Bolts, Steel, Black, Round-Style, Ford, Jeep, SUV, Rear, Set of 4

Part Number: SLF-10704

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

Axle U-Bolts, Black, Round Style, 0.625 in. Diameter, 15.5 in. Length, 3.375 in. Wide, Nuts, Washers, Set of 4

Part Number: SLF-11464

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

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