if you ever do any hard wheeling you will hate the tru-trac.
i have a few people i know that have them in the front.
they never grab when you need the to unless you are constantly on the brakes to get it to lock in.
i would run the lock right/aussie/e-z locker/quick lock    or detroit before the tru-trac.
tru-tracs are for people that drive easy fireroads and need a little more traction in their axles.

derek