ok im gonna look at a d60 either tomorrow or sat...250 HEHEHE! anyway it supposedly has 5.13s... now what exaclty should i look at? i know ot pull the diff cover, and check the gear ration on the ring gear to confirm ratio...and that kingpins are "better" than BJs. what exactly is the diff? ya i know noobish question... anything else i should check for? Its sposed to be a ford axle taht had the perches moved to fit out years chevies.