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A: Rod Diameter B: Width Between Legs (inside to inside) C: Leg Length
To ensure proper measurement: Please keep in mind that rod diameter is measured at the threads and threaded ends tend to be thicker than the solid rod
Leaf Spring U-Bolts by Vehicle
What is a U-bolt?
U-bolts are common bolts that are used for building construction and/or vehicle suspension like leaf springs. Considered one of the major parts of your leaf spring installation, u-bolts will provide a permanent tie between the spring leaves. When describing what a u-bolt is, one can just look at the shape. With a letter U shape, the bolt features two threaded arms. The primary use of the U-bolt is to connect the axle of your Ford F150 or Chevy Silverado to the leaf spring pack within the suspension system.
When would I have to replace my existing u-bolts?
This is one of the most common questions we get concerning U-bolts. When you remove your existing u-bolts for maintenance, we highly recommend that you replace them with newer bolts. The new u-bolts should be equal measurement. Another reason to replace your existing u-bolts is rust. During time, your u-bolts can become rusty or bend out of shape causing your leaf springs to loosen or your exhaust pipe to rattle. Never reuse your original u-bolts because by doing so can cause fatigue and stretching. Considering u-bolts are a major part of your leaf springs, it is important to replace them when needed.
How to install new U-bolts
Removing and replacing your existing u-bolts is rather easy. When doing so, make sure your Jeep truck or Toyota Pickup is on a flat, level surface. You will jack one side up and place your truck onto jack stands. Find the damage u-bolt you want to replace. Remove the nuts to the small metal piece that is connecting each part of the u-bolt. Remove it then place the newer u-bolt around the leaf spring. Using two nuts, you will connect the two parts of the “U” with the small metal piece. Using a socket wrench, you will tighten the nuts. Lower your truck and you are finish. Please note, you must always keep the u-bolt nut tight at all times and re-torque the u-bolt within 500 miles after being replaced. This will help when your spring is settling.
How do I measure a u-bolt?
So you are ready to get your new or replacement u-bolt for your Dodge Ram 1500 or Chevy Blazer. We offer u-bolts bent to the manufacture including Chevy/GMC, Dodge, Nissan, Ford and Toyota. But if you do not see your measurement there then we will custom bend the u-bolts for your specific vehicle. When ordering a custom bent u-bolt it is important to know the type of measurement you need. First, decide if you need a round, square or semi-round bolt. Then you must get the rod diameter, the inside width and the leg length.