Been thinking about going lower with my truck than it currently sits.

Right now I have GroundForce 2 inch drop shackles in the rear to level the truck out.

The shackles came with the pinion angle correction wedges that go in on the leaf spring mounts to prevent driveshaft vibration after lowering.

If I go another 2 to 3 inches lower in the rear, will I need to make any further pinion angle correction?

What I'm thinking of doing is seeing if 3 inch drop leaf springs will work with my shackles to give me a total of 4 or 5 inches drop in the rear, dependent on which hole in the shackle I mount the leaf to in the rear.

Also, with 4 or 5 inches in the rear, should I go 2 or 3 in the front to get a level stance?

 

you need to actually measure your pinion angle with a guage to know for sure what you'll need.

IIRC the GF 4" leafs do not come with shims, when used alone