Where are you located at? That seems a bit high. I can get 4.56's for a bit under $500 shipped, and a rear locker (I assume for a 9.25) for about $550 or so, give or take. So they are charging you about $500-$600 for installation. I guess that is high to me, since it only costs $150 per axle here in Alabama, locker and gearsets installed. I would shop around a bit, at least for the labor. I can do gears and lockers, geez I am in the wrong business if I could charge that much! :wink: