How to Measure U-Bolts
on Your Vehicle
Most people aren’t aware that when they change out their
leaf springs, that they should also get new U-bolts. At the same time, you
don’t necessary have to wait until your leaf spring suspension runs out to have
your U-bolts replaced. At any rate, whatever your reason is, if you are going
to get new U-bolts, you will need to know how to properly measure the ones you
currently have in order to replace them with the right one.
The main function of a U-bolt is for connecting the axle of
your vehicle to the pack of leaf springs for an optimal suspension system. It
kind of works like a big industrial paperclip—with threads that hold the entire
suspension system together! The U-bolts are made to form around the leaf
springs and stretch as the nuts are tightened down on the rod. The metal of the
U-bolt is soft enough to move with the torque and pressure from the axle and
the drive shaft, making is flexible enough for the leaf springs to absorb impacts
along the road.
3 Types of U-Bolts
There are three types of U-bolts available. This depends on
the suspension design of your truck, SUV, car, van or recreational vehicle:
When ordering your U-bolt, the manufacturer will need
certain measurements. First, you need to know exactly what kinds of
measurements are needed. There are three types of measurements for U-bolts: the
A Measurement, the B Measurement, and the Leg Length.
– This measures the diameter of the rod.
– This measures the inside width of the U-bolt. It is
needed to determine the type of bend rod that the manufacturer needs in order to
give the U-bolt the right width.
– The leg length measures the overall length of the U-bolt. This
is determined by measuring from the highest point of the U-bolt to the last
thread. It is always best to round up when measuring the leg length as the
manufacturer will have a better idea of which rod to use.
Where to Find the
When it comes to finding the right manufacturer for U-bolt
replacements, General Spring is the place to look to. For over 50 years, we
have been perfecting the science of vehicle suspension systems for your car,
truck, SUV, van, and recreational transportation. We not only provide U-bolts,
but also specialize in leaf spring suspension, coil springs, and load support
attachment parts. In addition, we custom design suspension parts for those
out-of date vehicles that are no longer in production.
General Spring, Your
is located in New Century, Kansas. Here, we provide a full service
shop, but we also are equipped and fully stocked to take orders online and ship
them out at a moment’s notice while carefully inspecting our products before
shipping them out to you. If you are interested in purchasing U-bolts from us
or seeing what other type of suspension parts we have to offer, view our online
If you require a custom-made U-bolt or leaf spring, call us toll free at
888-829-0619. Local inquires can call 913-829-0619 or
contact us online