I attempted to put a brand new lower control arm on my 91 GMC Sierra 2500, and it does not fit properly. The front bushing seems to fit okay in the mount, but after one hell of a struggle I can get the other bushing in the mount but it is pressed hard to one side, and there is a gap that I could fit a dime through on the other. So one of the bushings is squeezing really hard to one side of the mount, and not even touching the other side. Would it be correct just to force it on and install it with a gap? Could this lead to premature where of the bushing? Do I need to shim the gap? Is this a manufacturer's defect where I need to replace the part?
The gap is showing on the left side of the rear bushing in the pic: