I have 04 Belltech lowering shackles I know they will fit my 2011 but what pinion shims would I need? I didnt get any with the shackles and took them off the 04 because of vibration. Any help would be appreciated Thanks

 

I know when I had the GF shackles they came with (if I'm correct) 2 degree shims. Never had a vibration. Might want to look into what their shim sizes are with the kit.

 

Same here. 2° shims are what came with my Groud Force shims. Never had a vibration. Just search for some 2° shims for 3" wide leafs and you should be set.

 

Yep, 2 degree with my Ground Force. Never a vibration.