Energy Suspension 3.1129G Large 7.5 CC Transmission Mount for GM

great part

Took all the slop out during shifts, and gear selection. Take out the stock rubber mount!

Installed on my 2005 gmc 3500 Dually 4x4 with Allison 1000 transmission. Took me 20 min to install. Very good quality. Took care of my shake on accelerating.

Fits great, used it to replace my extremely worn out mount on my nv4500 swapped 1986 k30

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.

I bought this open box/used for a discounted price. It arrived looking brand new. The box on the other hand, looked like it was a stunt double for the opening scene of the first Ace Ventura movie. I used this as a replacement for OEM mount on a 1991 suburban 4x4 LS swap. Good fit and looks solid! I hope to drive it soon.

Bought this mount in January. Has been on for a month now. Notice that it is firmer. Easy to install. Comes with new hardware. Have a trans jack or floor jack and a piece of thick wood to cover the trans pan. Undo the bolts and lift the trans just enough to get the old one out. Install the new one. Lower the trans enough to start the bolts. Drop the trans and tighten the bolts. I bought Merchant Automotive engine mounts. When I install them. I will review those also.

No more lose motion from the rotten factor mount putting it in gear.