Trying to Align my 1987 Jimmy

[bubble8]

I installed a Rough Country 4 inch lift kit with leafs in the front and blocks in the rear. I also have 15 inch rims with 35 inch tires. I brought it to the shop to be aligned and they told me I cant get it aligned unless i have wedges installed?? The lift kit didn't come with wedges . Should i install the wedges or take it to another shop ??
Any help would be greatly appreciated

 

[nvrenuf]

Small wedges or shims are common for fixing the caster angle.

Typically these would have come on the springs, were they new or used?

 

[bubble8]

the kit was new bought it from JC Whitney
Talked to a guy at a shop and he told me he can get the wedges for $30 not a big deal just have to wait to put them in and get it aligned
Thanks for the response