Problem installing control arms

Just replaced the upper control arm bushings with polyurethanes and I am struggling to push the control arm in enough to get a bolt through. I'm afraid if I push on it any harder the body will fall off the jack stands. Am I missing something simple? I realize it's supposed to be a tight squeeze, that's the point of replacing the bushings, but I tried everything I could think of for 30 minutes last night. 

I had the exact same problem with poly's on the upper control arm.

This is what I did:

- Grease the 'path' to the mount location (remove grease afterwards, if you have enough of the poly-mounting-lube, then use that).
- Find a wooden 1/2"-ish stick (or something that can in the tight place, that won't break itself and won't scar the bushing-housing).
- Place stick on the bushing-housing at one side, hammer a bit (lightly) on the stick with a plastic hammer, then the other side, then back to the first side again and repeat until you drive it home...

You get the idea...

If you stop and think about things a abit, when you install those bushing and wrench the bolt down that clamps everything in place, it put more than quite a bit of pressure on things, and for all consideration, clamps the OEM bushings tight enough where they are not going to twist in place.  Tapping lightly is not a term I would use to describe things.  While I would not install polyurethane bushings into the control arms, I have installed more than a dozen or so OEM ones and I would take a dead blow and whale the tar out of things to get them back where they belong.
Just saying.

I left it in place hoping that the bushings might compress some for a little more give.

I did something like this on lower control arms... Stuff was even tighter than on the upper arms on my car... But I took the whole lower arm, with the bushing installed and clammed on both ends of the bushings for a couple of days... It did help a bit, but it was still tight and I had to hammer pretty violently.

I'm using prothane kit 1-2011 if that helps any.

I using that too... Or was it 1-2012?... Anyway same brand, same material.