Driveline angle question. Experts inside please....

[BadWS6]

Thank you sir that clears it up

[Joe 1320]

Just to clarify... you can only adjust the pinion angle with the torque arm. The adjustable LCA's will not do this. As you lengthen or shorten the LCA, the axle simply moves backward or forward in the wheel opening. The front of the TA will simply move back slightly... in the stock TA this is simply the arm sliding back out of the bushing, in the aftemarket arms its handled with a pivot or a slider. This small change on length of the TA is not enough to appreciably change the pinion angle.

The adjustable TA's include an adjusting nut that pivots the rear mount position with respect to the TA.... its the bright metal nut on the lower tube of the arm, right in front of the lower rod end bolt in the rear mount:

Man, I must be slipping. I used the adjustable lower control arms on my Buick, but that is a four link and doesn't have the torque arm. Good catch.