Hi guys doing the front end on my 69 Chevelle. I ordered a energy suspension bushing kit. All of them fit except for one of the lower A arms. I know this is the right kit for the car so there's nothing work with the kit I ordered.

The lower a arm bushing on the one that it doesn't fit is bigger than the one's on my original Lower A arm. Both Arms look identical, only the non original A arm takes one bigger bushing. Does anyone know what this lower arm is off of? What year gm car? These are all round bushings. thanks for any Help.

See this link. There are three types of lowers. There are pictures of all three here.
http://www.leverfamilysite.com/three_types_of_lowers.htm
Sounds like the one arm that takes the larger bushing is off a A-Body 64 thru 66.

Thanks a lot for the info it was just what I was looking for!! thanks again...