rear end issues

sting5841 · January 4, 2004

hey guys i need help i have a 03 5.3l with the upgraded rear end being a locker and 3.73

lately only one wheel will spin and its sounds nasty I used to be able to go sideways around every corner now im lucky if i can even get the left tire to spin so please help any ideas would be helpfull the dealer said they pulled the cover and it was fine but i marked the cover they never even touched it so let me know what i can do do i need a new axle or what

thanks guys

YZRider · January 4, 2004

Is it still making a noise? If you are sure that they did not pull the cover off & check it, maybe you need to go back and talk to them. If not, and your truck is under warranty, just go to an independent shop and ask them to inspect the rear diff. I mean it will only cost you 1/2 hr labour and some oil anyway, at the very least you get your diff serviced. Being in the auto repair business, I have a real problem with shops that tell you they did something they didn't, or worse yet, charge for something they didn't do.

Steve

sting5841 · January 5, 2004

thanks. I guess I will try that I was hoping for a simple solution but I'll try that

2ksleeper · January 5, 2004

If your truck is still under warrenty why not just take it to another dealer & get another opinion. A good way to test to see if it is to get right wheel on pavement & the left wheel on dirt & try to brake lock it, both wheels should spin. Then do the same thing with the right wheel on dirt & the left wheel on pavement, both wheels should spin again. The G80 locking differential has to a difference in wheel speed to engage & will disengage after 25 mph. I had the same factory locking G80 until I got tired of doing peg leg right hand turns. I ended up swapping the factory Eaton G80 for an Eaton LSD (posi-traction) and love it. It is very easy to predict rear end engagement & makes it easier to horsing around.