Well, I got under the car today, and everything looks fine from the outside;

Output flanges are fine, the drive shaft spins freely with the rear wheels,

All the linkage is okay and the car still works in park.

I jacked up the rear wheels and started the car, put it in drive to see if it would spin the tires, when a buddy rev'd it up, the shaft looked like it wanted to turn but didn't spin the tires....

So I think the next step would be to drop the transmission? What could be the cause of this? And is it easier to just get a new transmission? Looks like i might be in the market for one (vstech, ill PM you once I drop it)....

Any help would be appreciated, as money is tight on this job.

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'87 300D