How much ground clearence will I loose if I install a 14bff. I have a 10 bolt now. How much will I loose if the 14bff is shaved. I have a 14bff lined up, but I don't know the ratio or if it is open or govlock. I am guessing it is govlocked. The guy said that the previous owner used to have a 454 in the truck and would light both tires on burnouts. With a govlock, can still weld it like an open diff? Also, how do you replace the bearings in a 14bff. How hard is it? Thanks Harley My Chevy isn't broken, its just out of gas.