I am fixin to do a gear swap in the Jimmy, and I figure while I am at it I should go ahead and puy in some lockers. I was thinking about a Detroit or ARB in the rear but I am not sure about the front, should I leave it open? GO with an ARB air locker or what? The drive ratio is about 60/40, this is my daily driver. I am running 10 bolt front and 12 bolt rear. I am looking at going to 4.10 gears, right now I have 3.73. Your input is greatly appreciated. <*)))>< 81" GMC Jimmy, 4" lift and a shackle flip, and 35's! IT'S A DOG EAT DOG WORLD OUT THERE, AND I'M WEARING "MILK BONE" UNDERWEAR!!!!!!!!