Rear prop shaft bolts stuck

[scottau]

hey guys, in the process of tripping down for body and paint work. I've managed to remove every nut and bolt without a hitch except the rear prop shaft to diff bolts. I can't get an impact wrench on them as no access. I'm thinking heat to the bolts. Also access is a pita as I need the wheels down to stop the shaft rotating. Any tips and tricks here?
Thanks

 

[dang]

It's been a while but can you use a box end wrench from underneath? You should be able to stick a screwdriver in-between the u-joints that hits the tunnel when you turn the shaft.

 

[stphers]

use the box end of one wrench on the nut and another box end hooked into the first one to double the length and give you some more leverage Dan's suggestion to use a screwdriver in the u joints works well, use a big one.

Thanks, Rick

 

[eriknetherlands]

Instead of a screwdriver, I used a 10 foot 2x2 wood piece stuck between the 5 bolts after the wheel was off, and the car in the air. Then a big breaker bar, provided you can get something from your tool cabinet on the nut.
I believe the bolts are captive, having a flat end that locks on a milled flange, not?

 

[sfdon]

We have different lengths of cheater pipes. And always handy to have a ratcheting 1/2“ long torque wrench to get just the right angle.