Currently: Arb locker rear, spartan front

I'm doing the diff stud eliminator so I have the diffs out...I want to put the Arb in front so I can flip it on and off whenever.

BUT...I'm a little concerned about the spartan in the rear for strength reasons. V6 diffs so the spartan didn't come with new side gears. It has worked perfect in the front so far but it is mechanical so it dosent always disengage or it engages to quick, not a big concern.

One more thing the diff with the spartan in it has 150k on the 456 gears, the Arb diff has 240k on the gears. The rear takes a lot more of a beating than the front...figured I would be a little easier on the older gears. Running 36" iroks, trailer queen.

Anybody running spartan v6 in rear with 35's+?