Vombrown
Mountain Man
since I am already swapping in a 14 bolt in the 72 and have to move the spring perches, would you leave the pinion angle the same or change it. Not planning on running more than 2" of lift.
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
Pinion angle on 14 bolt
- Thread starter Vombrown
- Start date
454Sub
5/8 ton status
Set it 1-2* lower than the t case output to compensate for axle torque when under throttle. It's probably fine the way it is but if your welding them on anyways may as well hit the nail dead center on the head.
Vombrown
Mountain Man
I didn't have a magic number in my head as far as angle but I figured since I was there I might as well adjust it if needed. The rear driveshaft is long on the suburban so it's fairly forgiving. The 14 bolt already has a good amount of pinion angle built in stock, maybe a little too much for what I need. I had not considered axle wrap but I will take a look at the angles when lining it up. After making my marks on the tube for spring perch placement, I usually tack weld them both on then bolt everything up with the new equipment to check and verify my Work before burning it in. That should tell the tale. What I have done in the past with shorter wheelbase trucks is use a string line from the output of the transfer case to the rear yoke. Then with both yokes pointed at each other drop the rear yoke about an inch or more to compensate for compression on the rear springs. So that basically fully loaded the rear springs would point the yokes towards each other. If that makes sense.
