I have a 2001 gmc jimmy 2 door and I have been replacing everything under the front end. Does anyone know the torque specs for the upper and lower a arms? I think I have them to tight because the ride is stiff as hell and everything is brand new.
Hello. That is a great project, and it's a good thing you're paying attention to the torque specs. Getting them wrong can cause a lot of problems, as you've noticed with the stiff ride. It's a very common mistake to over-tighten them. Here are the torque specifications for the upper and lower control arms on a 2001 GMC Jimmy:
For the lower control arm:
- The front pivot bolt is 95 lb-ft.
- The rear pivot bolt is 114 lb-ft.
For the upper control arm: The front and rear pivot bolts are both 60 lb-ft.
It is very important to make sure that these bolts are tightened to the correct specification. If they are too tight, they can bind the bushings and cause the suspension to be very stiff. It can also cause premature wear on the bushings and other components.
It's also a good idea to tighten the bolts with the vehicle's weight on the suspension. If you tighten the bolts when the vehicle is on a lift with the suspension hanging, the bushings will be twisted when the vehicle is lowered, which can cause them to fail prematurely.
I hope this helps you get the ride you're looking for.
