Completed my tummy tuck and will be installing the Novak cable shifter this weekend. I will also adjust the upper control arms to dial the pinion angle in. Do I need to adjust the lower control arms? I just want to do all this at once and not having to go back to work on it again.
To do it correctly you should adjust both but you can get away with only the uppers. Alot of people do. I'll see if I can find the exact specs of how to because one they both can affect pinion angle but when you change one you change the wheel base somewhat. so you adjust the arms so you have the same wheel base and the correct pinion angle, I believe.
Ryan - A good eye, a light foot, and a smart rig. Bolt-ons are boring
Yea, the lowers pulls your axle forward or backwards and the top adjusts your pinion angle. Pinion needs to b 2 degrees below the drive shaft angle. Put an angle finder on the drive shaft and then on the gasket surface of the rear cover. That flat surface is exactly 90 degrees off of your pinion so you can set it, minus 90. Say your drive shaft is 15 degrees. Set the pinion at 13 which would read 103 on the angle finder when on the gasket surface
If this is the first time adjusting things, I'd pull your springs and check everything out as you adjust your arms. Adjust for pinion angle, and then cycle your axle (check at full bump, droop, and everything in between) to see if you need to move your axle forward or back at all. Shouldn't be too difficult.