I measured both the front driveshafts

The 79-83 driveshaft's are 19 1/2" compressed and 23 1/2" extended and still has 2" of spline left
and can move upto a 35 deg angle

The 86-95 IFS front driveshaft's are 23 1/2" compressed and 28" extended with 2" of spline left.
They only have about a 22-25 deg angle to them they can be modifyed for more though.

Also dropped off my rear drive shaft to have it shortened.
The guy at the driveline place looked at it and said it's bent and twisted.
Must have been that series of stumps I hit out in the woods last weekend. I wondered why I had a bit of a vibration on the way home.
Anways I told him I want it sleeved with bigger od tubing and balanced.
I'll see how much it runs me to do this.