Ok so I finally got around to changing my rear subframe mounts.
First set back was getting the Passanger side main bolt completely out.
Finally the bolt broke loose after I broke a 1/2" non-Craftsman 15 inch breaker bar.
I purchased a craftsman 18 inch breaker bar. Using it and some pipe the bolt finally started to move slowly. I was afraid I had broke it but was not the case.

So now I have the mount pryed out and the issue now is installing the new mount. I've read what I could find here and using some wood I made a jig so that I could push the mount into the hole using a floor jack. The jib supports the outer ring of the mount not the center portion. Also I used some silcone grease. After all this it still will only go so far and not seat completely.

I'm wondering if I didn't use enough force ( I didn't life the entire car yet)?
I'm wondering if I didn't use enough grease/lube ?
I'm wondering after comparing the old to the new if it would hurt to shave the new mount to allow it to go in ?
I'm also wondering if the 40ish degree weather today is making that new rubbber harder to work with?

I took some photos of where I am so far and maybe some of you that have done this before can give me some answers or ideas.

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Eric in Plano,Tx
85 300D 277K overall miles
65K on WVO (2 tank)
Rebuilt Transmission at 245k miles.

96 CE LT1
94 Nissian Hardbody
96 F250 XLT PowerStroke (also runs on WVO)