O.k. My Belltech lowering kit came with a 6 degree shim. The Caltracs come with a shim about 1/8" thick. Can I use them together?? I think it will change my pinion angle too much. Please let me know what I should do. Thanks in advance.

 

I would only use the 6 deg. shim. If you put two together they may shift or fall out. Just make sure to put the fat end forward!

 

Thanks Orphaner. I was planning on doing the same thing.