lower control arm u bolts

[Greg63]

Originally Posted by greg64

Hi Greg,

Here's what you're looking for (if you want stock): http://www.classicparts.com/prodinfo.asp?number=74-351

But as others have pointed out, the original was 7/16" and the later stuff is 9/16". I'm going to switch these on my 64 as well, and was thinking about going with the 9/16 and just drilling out the crossmember.

Thanks Greg.
I picked up the GM 9/16" bolts and will be drilling. They were about $9 each.
Greg