I have just measured up my old pins and bushes (not been to the scrapyard yet!).
Length of 1" dia part of kingpin - 15-1/16" (15.062"), plus -
Bottom thread (male) - 1/2"UNF (not 7/16"), 13/16" (0.812") long .
Top thread (female) - drilled 2-3/4" (2.75") deep, tapped 1/2"BSF, 2-1/2" (2.5") approx deep, and then drilled down at a smaller diameter to meet oil groove cross hole. (NB: Current factory grease-lubricated stainless pins are tapped 1/2"UNF.)
Bush length 2-1/2" (2.5")
Bush outer dia 1.225", measured with my plastic vernier gauge - I would get your old ones properly measured with a micrometer if you are thinking of making new ones yourself, as the interference fit in the stub axle is critical.
Hope this is useful
Fjemog
