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75+ Years In Business | Largest Selection Since 1941

LUCK OF THE IRISH STOREWIDE DISCOUNT: 5% OFF ORDERS OVER $350 & 10% OFF ORDERS OVER $599 FOR THE MONTH OF MARCH!
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Leaf Spring U-Bolt Kits

LEAF SPRING U BOLT KITS
Leaf Spring U-Bolts for Trucks & Auto Applications

Heavy, Medium & Light Duty U-Bolts

New leaf spring U-bolts are the foundation of any leaf spring installation. ATS Springs supplies U-bolts for heavy, medium, and light-duty trucks, as well as automotive applications.

If you’re unsure which U-bolt size or bend type fits your application, contact us and “Just Ask Bob” or call our toll-free number. Our specialists will help you select the proper U-bolt for your job.

Available Grades & Bends

  • Grades: 5 to 8
  • Bends: Round, Square, Semi-Round

Each kit includes two U-bolts, deep nuts, and thick washers.

Important Installation Notes:

  • Do not reuse original or used U-bolts due to fatigue and stretching from the original torque.
  • Reference our recommended U-bolt torque page for proper installation.
  • All U-bolts are bent from straight rods when ordered.
  • U-bolts are special order items and non-returnable.

Measuring Your U-Bolts

  1. Select the U-bolt bend type: Round, Square, or Semi-Round
  2. Measure the rod diameter (“A”), inside width between legs (“B”), and leg length (“C”) to ensure proper fit.

Available Rod Diameters

3/8″ Rod

7/16″ Rod

1/2″ Rod

9/16″ Rod

5/8″ Rod

3/4″ Rod

7/8″ Rod

1″ Rod

1-1/8″ Rod

1-1/4″ Rod

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