Hello everyone, I need to replace my king pins in my 1970 f100, I have removed the spindle and old bushings. my question is does anyone know what size tap or thread type is used on the top and bottom of the spindle that the nut with a grease fitting spins into to hold the king pin and to lubricate it.

Thanks Jeff

 

Bugged up the threads? been there done that. Now might be the time to do a disc conversion.
If you already have the new kit, a machine shop should be able to tell the thread size from the new cap.