So i recently welded my diff and when i put it on i got a super bad vibration the whole time, it was not drivable pretty much so i went under tighted up some bolts (remember its a 93 my bolts are old, gross and super hard to get in) and it felt a ton better after that but it wasn't completely fixed. Now i got a mild vibration on the driver side between 25-35 mph, it smooths out at 40-60 and after 60 it whines and growls on deceleration and vibrates mildly. I have no clue what this could be but since it only vibrates on the driver side i narrowed it down to hub bearing or cv axle but it could be my welded diff or even driveshaft but i figured that if it was the diff or driveshaft the vibration would be a even vibration and not favor one side. and i cant really take it to a local shop because well i got a welded diff... so does anyone know where i should start to fix this? i have been driving it to see if something brakes, but it doesn't, i kinda wish it would so i know what the hell it is but it drifts great just the vibration makes the ride not enjoyable and at high speeds it seems deadly.

ps id like to replace or upgrade to better CV axles just because the diff puts a lot of stress on them anyone now where i can get a good set? are the supra ones better and are they direct fit?

 

I assume you have checked the obvious things like maybe a CV axle flange not seated good in the diff output flange? Are you sure you got the carrier bearing reset properly? There are three bolts that are different lengths that bolt the driveshaft to the diff are you sure you got those back in the right position?

 

i noticed the flange on the driver side CV joint doesn't sit as flush as the passenger side even tho the bolts are in all the way and tightened, also i didnt know the bolts for the drive shaft too diff where different lengthens im assuming the 3 longer ones go into the diff and the 3 shorter ones just go in the rubber cupling? and i dont know about the carrier bearing? is that part of the drive shaft? and how would i reset that properly?