UCA hardware question

[badbu68]

You're correct, the reason they have splines is so the bolts won't rotate in the hole. You can use regular bolts but if you have stock upper control arms, it makes it harder to tighten down or change the alignment as you have to use two wrenches instead of just one on the locking nut side.

Hope that helps.
-Joe

[mrr1999]

Thanks, Joe.