well i did a tranny swap auto for auto perfect match. afterwards my mechnic told em the vibration is from the driveshaft center bearing, so i got a DS and now its doin it again.... but its only when i got over 45mph... or if i got the rearend in the air its about 25+mph... so i have no idea what it is and the techs at my dealership look dumbfounded!!!! i mean i got slack in the rear yoke(ds to diff) they said i was a lil bit too excesive then they tell me to check the u joints.... idk what to do now... please help


cliffs:
replace tranny
replace drive shaft
viberations coming from rear of vechile coming to the front at 45+mph
when im on the throttle its not as bad as when i let off or just crusieing
can yall please help?

 

there are two drive shaft bearing/bushings, i would check those or check the balance of your tires..

 

I saw one bushing bearing and 2 u-joints... and the tires i just had rotated and balanced the other day...one guy said it might be the rear diff....he suggested a welded diff or lsd if ima replace it

 

problem fixed....

 

what was the problem

 

the center bearing was "off center" (iguess) when i reinstalled the shaft...i dropped the center bearing of the shaft and just reinstalled it again....

 

Did you replace the bearing or just reinstall it? I have the same problem. Any advice on doing this?

 

Pretty sure he just reinstalled it.