this axle is open and i have no clue what gears are in it. i was gonna use it but once again i've changed my mind so now i want to get rid of it for my next project (idea). it doesn't have calipers or hardlines but does have drums. it is really clean and it must have been out of something newer. i've already flipped the perches and shock mounts. all you need to do is bolt it up. first $125 takes the cake.