i have the diff. cover off my rear 44, it has 5.13 gears and Detroit locker. i was just checking it due to a loose pinion nut and cant find nothin wrong sept for a weird clicking noise like pop...pop...pop...pop. when i was free spinning one of the tires, in neutral, to check the other side of the gear .the sound was even instead of random but im not sure if thats normal?