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I have an 89 f350 w/ 351, For some reason when ever I accelerate hard or am crusing at around 50 - 60mph the truck the vibrating like hell? I have replaced the read universel's twice already. Could it be the front one or could it be that i have a warped drive shaft. Im thinking about pulling it apart this weekend and rolling it on the ground to see if it is warped. Could the vibrations be caused by anything else. Oh and the front end was just redone no more then 6 months ago. Thanks
is it an automatic or stick?? it could be an out of balance driveshaft. or could be in the tranny. if you have a miss in the motor and an auto tranny you can also get a bad vibration at different times.
Ill have to check this weekend what type of tranny it is because I am not with the vechile, Its at home and I am at college been werkin on it on the weekends. But ya I think im definitly gunna change the other U joint out. thanks