What is a Differential ?
A differential’s job is to compensate for differences. Specifically
the differences in wheel speed when turning. For instance, imagine
taking a corner. Your inside wheel has a shorter distance to travel
than the outside wheel as you go around the corner. That means that
your outside wheel has to turn faster to keep pace with the ...
https://mechanics.stackexchange.com/a/25370/12697 Covers the physical arrangment of gears in a basic differential. The key to understanding a differential is to understand how these gears behave under different scenarios.
The gearing arrangement means that relative to the crown wheel the two half shafts are constrained to turn by equal and opposite ammounts....
tl;dr: Don't do it, but if you do, be vigilant about rotating the tires based on the road conditions. Mechanically it will not cause any problems, as there is nothing linking the front and rear axles.
You should always try to run the same tires front and rear. If you only have 2 winter and 2 all season tires, the rear tires should always have more traction. ...
If you have enough clearance to fit under the Wrangler, there's no mechanical reason you cannot do this while the vehicle is on the ground. Torquing the pinion nut with it on the ground will not cause any issue to the differential.
Just removing the propshaft to the front will remove the 4x4.
But is the noise severe? If so then unless there are locking front hubs that can be disengaged the internals will still rotate and that may also lead to failure.
Removing the differential may be the way forward, but then the shafts to either hub have to be removed and that will depend on the ...
Jack up the front end and spin one tire by hand. If the other tire spins in the same direction, you have an LSD.
Examine the area next to the front differential. If you have a square housing and actuator (it will have a vacuum line attached to it) like the pictures below, you have the Toyota ADD system. (Granted this shows the system disassembled.)