|U-Bolts are a very important part of your suspension.
These functions can best be performed by proper U-Bolt maintenance.
- The U-bolt is the binding link between the axle and the vehicle.
- The U-bolt and center bolt provide a permanent tie between the spring leaves.
Why use L&H Threaded U-Bolt Rod?
- The U-bolt nuts must be kept tight. After replacing they should be re-torqued within 500 miles to accommodate settling of the springs.
- U-bolts should never be re-used. A U-bolt will stretch under torque, and after removed its ability to sustain torque can be diminished.
U-Bolt IdentificationFive items we will need to know to bend the proper u-bolt.
- L&H has strength equal to or greater than SAE minimums for Grade-8 fasteners.
- L&H threads are rolled, not cut, for superior thread and torque retention.
- Many OEM’s specify L&H’s exceptional strength and superior forming.
- L&H is cold formed, not heated, which eliminates scaling, quench cracks and warped twisted legs associated with Grade 8 heat treated bolts.
- Special application u-bolts- Forged or flat top-Mack, Neway, Hutch, etc.
- Size of u-bolt stock –“A” 3/8, 7/16, 1/2, 9/16, 5/8, 3/4, 7/8, 1, 1-1/8, and 1-1/4.
- Type of bend – Round, semi-round or squares (see illustration below.) Watch for special bends – Hendrickson 4", Chevrolet 2-9/16, 3-1/16,4-1/16.
- Width of u-bolt – “B” Measurement in illustration.
- Length of u-bolt - "C" Measurement in illustration.