Thanks again Rico. Awesome write up. RE: Diff End Play Test, interesting--but not sure what is being measured--ie, he starts by zeroing out on pinion, then prys up on diff thru full travel with screwdriver--maybe this makes more sense to me when I have parts in my hand. Also, this & manual both have diff carrier upright for test, which is not possible on car, ? Correct? Does it matter, horizontal or vertical?

Regardless, seems like its time for me to get a decent micrometer.