rough vibration any ideas?
01-15-2010, 02:49 PM
#1
Staging Lane
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rough vibration any ideas? ok so my car was all nice and fine when i bought it. then i desided to start doing go fast mods. well about 2 months ago i blew up the spider gears in the rear end (98 car bad rearend set-up) and desided id so ahead and buy a torque arm while i put in a new 3rd member, got that all done and now the car feels like its falling apart when ran hard at bout 50+ mph. theres a hard hitting sound like the driveshaft is knocking aginst the floorboard, and sends vibrations threwout the car. this is killing me cuz not only is it rough but its hitting knock retard and not running to its full. any ideas guys?
01-15-2010, 02:59 PM
#2
On The Tree
Did you buy an adjustable torque arm. Maybe you pinion angle is wrong. I would check your u-joints too. If its not centered at the rear it could cause this. I have seen some that have been off and you won't feel it til 45. As far as the knocking check your torque arm mount. My mount was slightly loose and would cause a knock. Tightened it up and it went away. good luck