Michigan Truck Spring is an accredited business with the BBB.
U Bolt Kits and Threaded Rod
Threaded Rod, Threaded Steel Rods

Threaded Rod, Threaded Steel Rods

Steel threaded rod from 5/8 inch to 1-1/4 inch diameter, used for custom bend ubolts and other medium to heavy duty applications. Can't find the right ubolts? We can custom bend threaded rod for custom ubolts, and in most cases, ship the same day.
U Bolts for Heavy Duty Trucks and Trailers

U Bolts for Heavy Duty Trucks and Trailers

At TruckSpring.com, we maintain a finished stock inventory of u-bolt kits for light, medium, and heavy duty trucks and trailers. Each kit includes 2 u-bolts, 4 nuts & 4 washers, and are available in semi-round, round, square, and forged top bends.
U Bolt Nuts and Washers

U Bolt Nuts and Washers

Need to replace the hardware on your U-bolts or threaded rod? TruckSpring.com has quality SAE Grade 5 and 8 Nuts and Flat Washers from L&H in sizes from 3/8 to 1/1/4 inch.
U Bolt Kits and Threaded Rod

TruckSpring.com uses the finest quality SAE Grade 5 and SAE Grade 8 steel, to provide you the best quality threaded rod and u-bolts. All threaded rod manufacturing processes are ISO 9002 and QS-9000 certified, to ensure the best quality products.

Can't find the threaded rod or u-bolts that meet your requirements? Give us a call @ 1-800-358-4751.

We have a Centermark bender which bends U-Bolts in a converging path and thus protects the critical shoulder area. We can custom bend u-bolts to your specifications, and in most cases, ship the same day.
Welcome to Michigan Truck Spring & TruckSpring.com

Since 1926, Michigan Truck Spring has been installing and using the same high quality truck parts that you'll find on our website. In fact, we install everything we sell, and have been selling online as TruckSpring.com since 2001.

Whether you're looking to overhaul your truck suspension, or make a minor repair, our mission is simple - to make sure you have the quality parts you need, and to become your trusted source for truck parts.

Located in the heart of the Midwest, Michigan Truck Spring employees are trained technicians in truck parts and repair. We're here to help, whether it's selecting the right product for your vehicle, an installation question, or a maintenance question, we'll help you through your project. We work hard to make sure you get the right parts for the job. You won't find a company more passionate about truck parts than Michigan Truck Spring.