An after-thought here: the parking brake will not effect this if the wheel off the ground is one of the front wheels.

 

NW-Actually the parking brake locks both drive shafts. It is attached to the rear output shaft on the back of the t-case, the front output shaft is also connected to the t-case, and sense both the shafts are connected by the gears inside the t-case...

 

ahh yes, but you have an "open" centre diff, so unless the CDL is engaged, the Park brake will do nuffin to the front wheels

 

DITTO, Both axles are only locked when the CDL is engaged.