greengoblin

ok jacked my rear end off the ground and put it in drive and let the wheels spin the pass side spun while the drivers side did not everything seamed fine till i stoped the pass side then the hole jeep started to shake side to side and the tire was jerking front to back like it was trying to lock up and go could this mean that i have some type of locker in it im at a loss here dont know much about rear ends any help would be nice

lbsrdi

I am having problems with the rear end of my 03 GC. Sorry I don't have an answer, frustrating.

BuckB91XJ

greengoblin, sounds like normal operation for an open differential to me. The power was going to the passenger side wheel. You tried to stop it so, the differential was attempting to route the power from the driveshaft over to the driver's side wheel. In an open differential the power from the driveshaft will be routed to the rear wheel with the least amount of outside resistense on it.

greengoblin

i know that there is a problem with the factory trac lok when it wheres out that it acts just like an open diff and thats why i was wondering

Rudeboy

Sounds normal...

Ritter4.0

What with the link to a company that has nothing to do with jeeps? Spam much?

BuckB91XJ

Do you even know for sure if you have a factory Trac Loc? If you do and it's doing what you said, it is bad. One wheel turning with any kind traction divice and no resistence is a bad sign.

Ritter4.0

Maybe he does have a Trac Loc, but forgot to put the fluid additive in with the oil? I have no idea how an LSD really works, but I think it may be a possibility.

kriebz

What? I can barely read your post. Take the diff cover off and check if you don't know what's in there. Worst case scenario, you need to find another car to go out and get RTV, gear oil, and possibly friction modifier in.

Was it the passenger-side rear wheel that was jerking (the one you tried to hold on to) or the diver's-side? Could you see the other side?

greengoblin

i had a guy i work with hold the passinger side wheel and the driver started to spin while it was spinning the passenger side acted like it wanted to grab it was jerking back and forth but its getting warmer out and now i can get under there to pull the cover and dont need another car i have a part store across the street

builtnotbought89'

yep normal open diff function! remember the power will take the route of least resistance... meaning the tire not being held at a stop will spin, but it will continue to attempt to spin the RR tire as power is transferred to the LR tire! Thus the "jurking" your talking about!!!

greengoblin

thank you builtnotbought it was confusing me but im going to change the diff fluid anyway hasnt been changed since i bought it so i think im also going to look into a locker of some sort