Enough to where I need to do something about it before I tear something up. This can cause shakes and rattles in the body or noises from under the vehicle. It just seems to me when I am driving that the sound is further in front not basically direclty under me. . I can make the sound when I hold the brake and hit the gas but I have to drive around the block and stop again to get it to repeat.
I've seen a completely blown trans mount on a Firebird cause the catalytic converters to slap the underside of the body on the car, keep in mind that the whole motor and transmission assembly is held to the frame by three mounting points, two motor mounts and one transmission mount. I was also wondering if I need to even jack up the truck or if I can use a floor jack and just lift the transmission enough to remove the old mount and add the new. With a bad transmission mount the motor and transmission and rock forward causing various components to make contact with things you wouldn't think they normally could. Your manual transmission mount and motor mounts secure your drivetrain to the frame. I feel a loud vibration almost like pure bass coming from the truck when I stop in gear. They dampen vibrations from the engine or transmission and isolate the motion of bumps.
It also makes the sound over bumps when I am going below 20 mph. Sorry I am just thinking out loud. Any advice or comments would be appreciated. Though rare, a bad transmission mount could cause the transmission to break free from the vehicle over time. We also stock the engine mounts and related parts you need to complete your repairs. Could I get some tips or basically the how to for this? I am just wondering if It could be the transmission mount and maybe a motor mount as well. I am wondering if this is transmission mount related or more of a motor mount issue.
The transmission or exhaust could be making contact with the underside of the truck body. It goes away when I accelerate and put in park. Because they are made from rubber, a transmission mount can break down over time. When I am traveling over 20 mph I never here the sound. I know it's been awhile since this thread, but I am having a similar problem that just seemed to have gotten a little worse. The other day I was under my truck and pushed up on the transmission and heard the exact sound in that mount.
Thanks if you can fit under the truck you don't need to jack it up, you will be able to just jack up the transmission like you suspect. I am going to replace the transmisssion mount this weekend and will see if that gets it done. I'm going to at least take a look this weekend and be sure everything is tight. The motor mounts limit the side to side movement of the assembly. .
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