I heard you can use the ford large bearing end housing with retainer plate with correct chevy brake pattern for narrowing a rear. I have found a part# to allow a 28 spline axle to work with this bearing part# BCA/national 511004. Just still not sure on the correct seals. Does it sound like Im on the right track? Also see something about a 1977 ford ranchero bearing. I looked them up and they look like the right dimensions.