Energy Suspension 3.1129G Large 7.5 CC Transmission Mount for GM

Fit perfect on my 2005 GMC sierra 3500 duramax with the Allison 1000 transmission. Took a while to get it lined up. Dont listen to the idiots on the internet though, the preload plate is required to be installed as well as the mount. Energy suspension notes that in the installation manual as well. Its not specifically listed for the Duramax/Allison application but this is the right mount.

WOW this looks 5 time tougher then the OEM , I have had 4 OEM in the truck all have broken or rusted , last one was in 5 pieces when removed

Been in my truck for awhile now and works great. No more wore out rubber mounts.

Perfect quality and was as described properly in the description. I would recommend this product to somebody who is looking for one.

It fit my trailblazer lt 4.2 transmission it has the 4l60e

Worked great for my modified Duramax.

great part

I installed this on my 2002 Chevy Silverado 2500HD Duramax/Allison pickup and it works great. Truck feels like it shifts better after replacing my stock rubber one with this poly mount.

Good product for my 700R4. Had no instructions to show what the extra bracket was supposed to be used for. Make sure you also use poly engine mounts if you are going to use this.

Great quality. Much better than standard rubber mounts