SAS pinion angle


reddog5

15+ Year Member

Joined
Aug 7, 2007
Messages
53
Points
3,101
City
Dallas, Texas
Vehicle Year
99
Transmission
Automatic
Just curious what degree pinion angle everyone is running.

From what i understand is that the caster angle is more important than the u -joint angle. I figured i would put mine at 7 degrees. I came up with that number for a couple reasons. First i read from currie ent. in a mag a while back that they found 6 degrees to be ideal for rigs with large tires, (im guessing over 35s) to track well down the road. Second i have a freind that had his old axle at around 10 degrees and he had gnarly death wobble which he cured by shiming it down near 7 degrees.

So i figure anything between 6-9 degrees is exceptable and safe?? it could always shim it either way to fine tune it.

So what ya got??
 
6 degrees.

And Caster is more important then pinion angle. But at the right caster if the pinion angle is really bad then you can cut and turn the axle tubes.
 

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