tranny poly mount worth it - Third Generation F-Body Message Boards

88fastgta · 09-25-2009, 11:56 AM

im debating weather or not to get a poly tranny mount... ive heard that it causes some issues... what kind of issues are there with this.... i have a probuilt 700r4 thats shifts really hard when you give it alot of gas and i have a freshly built hotcammed 355tpi and i dont think the stock rubber will hold up..... what are the pros and cons of using a poly mount... thanks in advance...

ATX-Iroc · 09-25-2009, 01:35 PM

A poly trans mount will bring out any vibrations you have in your driveline, but a well running car shouldnt have any vibrations. so i see no downside, and i have one installed.

firechicken_3 · 09-27-2009, 10:08 PM

im with ATX, i felt a difference with a poly mount for sure....but they are a far more secure way to go, especially in a performance environment

i've broken more than a couple rubber ones myself before i went poly and i wont go back

Atilla the Fun · 09-28-2009, 06:18 PM

me three. Also, the poly version has an internal steel interlock, it can't separate like the stock rubber ones always do. While you're at it, do the poly torque arm bushing. It's a bit of hassle, but I'm glad I did mine.

mmadden55 · 09-28-2009, 06:42 PM

I used the stock mount on my GTA but I strapped with two long hose clamps I got at Home Depot. Just wrapped them around the mount. It works like a normal mount except the two straps keep it from breaking. Same idea as a hold down chain protecting a rubber motor mount. Works great. Cost maybe 3 bucks.