My rear end seems very rough, jerking motion everytime i shift and give it gas. More noticeable at lower gears with a higher rpm shift. Normal shift is fine in 3 rd to fourth- fith shift. Even if i shift at 3000 rpm in first gear, it feels like the right tire takes a second longer to get grip. Is this normal for our cars. 80,ooo miles on diff. I had my clutch go out, from slave cyclnder, got it back, now this problem.


What would cause my differential to start slipping.
I have a small oil leak out of the axle, but never ran dry, minor leak.
Differential doesn't make any noise, what piece causes it to slip.

 

The diff can't slip; it's a Torsen. Torsens don't have clutches in them.

Most likely you have diff mounts and/or engine mounts that are in need of replacement. The entire drivetrain hangs from the two engine mounts and two diff mounts. If any of them are worn you get problems. You could possibly have a cracked PPF as well.

 

DamonB is right on the money.. Probably a worn/broke mount.

 

Takes for the info this has been driving me crazy, Is there any snow ball effect by driving it like that, until i save some money for the repair.

 

It's a little rough on things yes..
If you take things easy, (no clutch drops, hard shifting, etc.. ) i think it should be fine for a while although it's going to be really harsh on your other mounts..
They shouldn't be that much money... and really are not that hard to replace.

 

Damon's right about the Torsen. It's gear driven, so there are no clutch or friction discs to slip. It either works or it doesn't, and if it doesn't, you'll know in a hurry.

Make sure you check your tire pressures. This may sound silly, but a large difference in tire pressure can cause the sensation you're describing, although I'm voting for worn bushings as well. What you're feeling is probably just your drivetrain/suspension "winding up" on acceleration/deceleration.

 

Jimlab called it, i took my car to my rotary shop and had a oil change and while it was on the lift i had my mechanic check bushings and PPF. He also filled and checked tires pressure as part of the oil change. Went for a ride, with mechanic,it wouldn't do it,back to normal, I asked him what he did, if he tightened any anything.He said no. He said he can tell the diff bushing is slightly worn, but it's been driving fine for 3 days and i can't get it to do it anymore, and it was very noticable