Quote:

---

Seen this happen to some cars that sit for awhile, everything seems fine when the vehicle is jack up, but once the wheels are on the ground and a resistance load is applied to the rear end the car goes no where, or it takes some serious RPM's to move it,...9 out of 10 times it's the rear end, drop the driveshaft, all 4 wheels on the ground you should be able to move the car forward and rearward by hand, if you can't, then it's the rear,...sure you can pull the chuck/axles, but what I've found that works best is to just pull the shaft, and slowly tow the car in any fashion as long as the rear wheels are on the ground, usually frees up the rear axle without any harm, last parts car I had recently had this issue...

mike

---

I have seen surface rust on the ring gear do that before
Gus