So i got my shore 80A filler today and it looks like more than enough to do all 4 mount.
I was gonna only do the front and rear engine mounts but now im debating doing the tranny mount as well. I've read that the urathane cracks and falls out rather quickly on the tranny mount. Any reason as to why that happens or is it because of the constant back and forth motion?

 

Good bit of vibration/twisting on the tranny mount.

The front and rear are more important so I would probably only do those if the other two are in good shape.

 

Talking to brian cattman, if your auto you only need to do one mount. stick needs to do 2 mounts. He stated something about the vibration being transfered into the car being too harsh if you do any more than that.

 

i need to take a look at the tranny mount im getting for the 5speed swap and then go from there i suppose

 

I used shore 80A filler in a kit i ordered, and it was enough to do all 3 of my mounts since im an auto. from what i remember i ordered it from mcmaster.com, and when i did them i let them cure for like 2 or 3 days before i installed them, then i had other stuff i was doing on my car anyway so they say for a good 5 or days to cure. It was about 7 months ago and my tranny mount still looks great.

Dave