bigbluedodge
Well-Known Member
We want the trans and pinion C/L to be parallel under power. The rear axle rotates upward at the nose under acceleration. This is the reason we add extra pinion angle. Leaf springs move the most. Adding traction bars, Cal Tracks, etc limits this movement. Ladder bars limit it even more, 4 links more yet. It's very possible that the trans is angled down at the rear. In some cases if the trans angle is enough, the pinion could actually point upwards in relation to the ground. Remember parallel pinion/trans. Then add what ever extra angle your suspension type requires. read more here;
https://www.dragzine.com/tech-stori...-angles-increase-torque-and-improving-hook-2/
Doug
Exactly right!
Bryand