What angle shims should I get?

So I just purchased the Dakars for my 14 AC TRD OR 4x4. The Axle shims from Toytek come in 2.0, 2.5, 3.0, 3.5, and 4 deg angles. I'm just installing the Dakars as they come and not removing any leafs. I have a shell on the back and the truck sits level now w/ stock OR suspension. How do I determine what degree shims I should buy? I'm adding Sway Away coil overs and shocks also. shooting for around 2.0 - 2.5 lift in front and 2.5 or a little more in rear.

 

I wouldn't add shims unless you get vibes but I think most people have good results with 3 degree shims.

Good luck.