2000 chevy blazer tranny Question??
 

When i back up and turn the wheel i get a vibration the whole car shakes. It only does it when i cut the wheel. It also does it some times when i pull in the drive way slowley. Anyone know what this could be?? Thanks Robert

how fast are you going when you're backing up? are your wheels turned all the way to lock? you could be rubbing the inside of the rims on your control arms.
you've given a kinda "rough" description, more details could be helpful.

when i back up its at normal speed. And i do not turn the wheel so its hits the inside. When i back up and turn the wheel stright it goes away

no its not stuck in 4wheel drive i already checked that

put it on jack stands

do u think it could be a u joint?

doubt it. but have you checked out the c/v shafts? it could be a bad one, but not sure why it's only doing it in reverse (especially if it's in 2WD). i know you said it's not stuck in 4WD, but how exactly did you check it when it was on the stands? i'm thinking maybe the front diff hasn't released completely (had that happen on my '92).

i'm not saying you don't know what you're doing, it's just kinda difficult without seeing/hearing the problem first hand, and just want to get a better picture of what's going on.

Well it does it some times when i pull in my drive way when i have the wheels turned. I noticed when i am in revurse and back up on a hill it get worse. It sound like it comes from the rear end. It only does it at slow speed i just dont get it