JW51 There is a lot of science in pinion angle,good thing I didn't know this over the years, have always eyeballed it from a creeper !! After about a dump truck load of driveshafts put thru my 8 foot Fay and Scott lathe,mine,theirs,neighbors they all worked. There is even one in my winch truck that has a schedule 40 coupling in it has hauled big loads since 82.
