In order to get gears,lockers and labor all under warranty it has to come from the same local shop,supplier.
otherwise if there's a massive failure no one would claim the failure was their fault while your stranded with a broke-ass truck.
I've dealt with two local supplier/installers for many of my Jeeps,
will be shopping them against each other for the best deal.
Murdered.. Lowered.. Alcohol Injected ..Blowered! 500WHP