I bought some MileMarker hubs from 4WParts, but am probably going to return them for some Warn premiums. The MM hubs I got, have a part no. for a 1/2 ton K5. I was really specific about the axle I have and the vehicle it came out of, I really just didn't check before I left the store. Question: Although the vehicle is an 82 K5 1/2 ton, my front axle is an 8lug D44 from a '77 K20. I should be getting hubs for the axle year, right? If so, are these 10 or 19 spline?