in addition to getting the driveshaft balanced, you can swap your transmission mount to polyurethane (if you havent already) to eliminate some extra play
so changing of the whole drive-shaft assembly without balancing will cause that vibration. mine is a old rusted drive-shaft with old original u-joints. wonder should I change it but the drive-shaft on a1999 GMC ENVOY cost up to $300 with tax. (for the whole shaft front u-joint connected to the yoke. and the rear end also have the u-joint. all that for $300)
similar issues in the past, rebalance driveshaft and check centering of u-joints on front yolk, possibly too much heighth but unlikely unless its binding.
I bought an aluminum drive line and put on slide a link traction bars on.
upyersbuddy 1 month ago
I have the same problem, how did you fix it or adjust it
lhb131 1 month ago
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it should be 4deg. at trans, and 4deg. at pinion. leaf spring cars can go as much as 7deg.
TheChevellelover 7 months ago
Comment removed
TheChevellelover 7 months ago
in addition to getting the driveshaft balanced, you can swap your transmission mount to polyurethane (if you havent already) to eliminate some extra play
GregNorris 11 months ago
so changing of the whole drive-shaft assembly without balancing will cause that vibration. mine is a old rusted drive-shaft with old original u-joints. wonder should I change it but the drive-shaft on a1999 GMC ENVOY cost up to $300 with tax. (for the whole shaft front u-joint connected to the yoke. and the rear end also have the u-joint. all that for $300)
MileyCyrus192 1 year ago
i can see the driveshaft vibrate and the back of the trans
jayguy173 1 year ago
similar issues in the past, rebalance driveshaft and check centering of u-joints on front yolk, possibly too much heighth but unlikely unless its binding.
turbolxcoupe91 1 year ago