Permanent Tranny Mount
TECH Enthusiast
Joined: Aug 2010
Posts: 543
Likes: 0
From: New Hampshire
That I cant answer personally, I'm still sitting on my stock decarbons LOL nvm upgrading my suspesion. Ran out of money before I got there. 
If you keep old rubber mounts they flex a lot, you hear people replacing them when they do long tube headers because the drivers side y/collector will hit the floor pan if the mounts flex under hard acceleration. I can attest to this. Which is why most people never break a poly trans mount because by the time they get to them everything else is replaced with poly lol
So now you have a harder poly trans mount trying to resist the movement of the engine/driveline, and not the engine mounts, because the poly is stiffer then the rubber, and snap. I bet him changing his mounts will fix the issue.
So now you have a harder poly trans mount trying to resist the movement of the engine/driveline, and not the engine mounts, because the poly is stiffer then the rubber, and snap. I bet him changing his mounts will fix the issue.
I actually have a poly tranny mount but only did that when I did the tubular tranny crossmember.
I swapped the engine mounts a few years ago because the bolts were accessible when I was changing front springs.
Yes I have a Caprice so it is a bit different setup, BUT imagine the load those mounts endure when over 2 tons pulls a 1.5 60ft.
I have this car because I want a big comfortable car, as such it will get as little poly as practical.
I swapped the engine mounts a few years ago because the bolts were accessible when I was changing front springs.
Yes I have a Caprice so it is a bit different setup, BUT imagine the load those mounts endure when over 2 tons pulls a 1.5 60ft.
I have this car because I want a big comfortable car, as such it will get as little poly as practical.
TECH Enthusiast
Joined: Aug 2010
Posts: 543
Likes: 0
From: New Hampshire
