I want to buy a new set of "Premium" Mile Marker locking hubs for my 1991 V3500 Crew Cab, but they (or any other manufactures) do not specifically specify a model of locking hubs for my truck (only 77 - 87 K30), which is one of the problems with owning any GM "V" or "R" series truck. I am supposing that any hubs that will fit any GM Dana-60 1 ton will fit mine (or am I wrong?).
I am guessing my spindles are 30-spline/ 1.312-inch diameter, but it is raining outside, and I am too lazy to go out and look. Do any of you know off hand?
I am guessing my spindles are 30-spline/ 1.312-inch diameter, but it is raining outside, and I am too lazy to go out and look. Do any of you know off hand?

. I am going to order up those hubs today.