Today we got about 2" of snow here in southern wisconsin and I noticed my car was getting stuck everywhere. I've had this car for over 5 years and never had this happen before and every thing is 100% the same as when I bought it. ( Except for alot more rust ). When I bought the car I looked at the rpo codes and found a GU2 which means 2:73 rear, and when I jacked it up and rotated either tire, the other one went the opposite way so I knew it wasn't posi. Now, today when I was getting stuck, only the passenger side tire was moving, regardless of how much I stepped on the gas. So when I got home I jacked up the rear of the car and spun each tire, and only the tire I rotated moved, but when I spun each tire, the drive shaft moved. With the car in park, I can still rotate both tires but the drive shaft does not move. Also when I try to rotate the driver's side tire in park or neutral it turns very hard, and I checked the drum brake and it's not holding it back. So my question is why is the drivers side tire not tuning. I found some dry pavement and could not get it to turn.

1989 Firebird Formula, Tbi 305, 150hp, 126000 miles, rusted but I love it.

 

Nobody has any thoughts on this at all. Any input would help. I would take off the differential cover to see what's going on, but I'm waiting for spring time when it's a little warmer.

 

Your post is rather hard to read, but I can't think of many was an open carrier diff can break and let the car move at all.

 

sounds like your spider gears in the rear end a junk needs new spiders gear or a new diff.

 

Thanks for the info. Is this something I can see just by pulling off the cover, or does something have to be removed to see them. I don't plan on pulling the cover for about 2 months yet. Still to cold and we have snow on the ground here in Wisconsin.

 

I see you live not to far from me. Didn't see that before I posted my last message. I go through waupun about three times a year to get to upper Michigan.

 

yes just pull the cover off and look inside the open in the middle of the diff and look at the gears in there and you will see missing teeth on the gears yeah im in a small town but its good to see some one else from wisconsin on here

 

I'll pull it off and take a look, but it'll be a while. I'll send you a message and let you know what I find. I'm going to wait about 1-2 months until the snow is gone. Thanks for the help.