Rear end Sank?

[ron1999]

a month ago i put my car on jack-stands for some exhaust work i am doing.
right after lifting it up i could turn the drive-shaft and had the wheels turning.
now, about a month later, the is still up but i can not turn the drive shaft anymore.
i followed the drive shaft along and it looks like the rear end has sank down and the floor of the car is now touching the drive shaft.
the jack supports are located underneath the rear sub frame - that large peice of metal that holds the diff, and the trailing arms.


is it ok?
should i replace my rear sub frame bushing now?

[jlevie]

Are your jack stands positioned under the points where the subframe mounts to the body? Or someplace else? Unless something has failed while the car is up in the air I don't see how the body could interfere with the drive shaft.

[gearheadE30]

I bet all that weight on the subframe bushings caused them to deform, especially if they were bad to begin with. is the shaft hitting the bottom of the hole in the subframe?

[ron1999]

I bet all that weight on the subframe bushings caused them to deform, especially if they were bad to begin with. is the shaft hitting the bottom of the hole in the subframe?

the jacks supports the rear sub frame itself -
the clearance between the DS hole in the sub frame and the DS remain the same, it is a little bit to the front of the car where the body touches the DS.
i will try to take picture of it.
i didnt place the jacks under the mounting places of the subframe to reduce stresss on the screws holding it to the place.


Ron.