vibration after new trans mount
A DS is just another way of saying driveshaft. If you take out your driveshaft when installing the tranny mount you might not put the driveshaft in the exact same position you took it out. Basically the DS will be 180 degrees off balance. The vibration is normal after installing a poly trans mount, if its really bad try taking out the DS and turning it 180 degrees. See if that helps.
Its only normal because people do not install them correctly. Energy suspension even mentions that as a problem in their catalogs.
The problem is that the mount is too tall when compared to the stock mount. If you installed it according to the directions you put that metal 'shim' betweent the mount and the crossmember. The thickness of that shim is the exact amount that makes it too tall. But you have to run the shim to keep the bushing together. So, you need to shim down the cross-member. Just get four washers as close to 1/8" thickness as possible. Install them between the cross-member and the body. Walla, you should have less vibrations, as well as a correct u-joint angle. (Some vibrations will not go away, due to the harder poly being used.)
The problem is that the mount is too tall when compared to the stock mount. If you installed it according to the directions you put that metal 'shim' betweent the mount and the crossmember. The thickness of that shim is the exact amount that makes it too tall. But you have to run the shim to keep the bushing together. So, you need to shim down the cross-member. Just get four washers as close to 1/8" thickness as possible. Install them between the cross-member and the body. Walla, you should have less vibrations, as well as a correct u-joint angle. (Some vibrations will not go away, due to the harder poly being used.)
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Energy suspension told me to just install the mount without the shim. It took away alot of vibration, but it was still there. I never thought about using washers to shim it. I just ended up going with an ls1 tranny mount. No vibrations and has been going strong for 2 years now.
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