New owner of a 1976 Plymouth Duster

Was out in the car today messing around, I managed to get the glove box open. I found a bunch of NOS Duster stickers still in Mopar packaging. Woot! Also I found the Broadcast sheet! I've never been so happy in my life.

Anyone know what a "316" means for axle? I'm still trying to figure out if this is a 7 1/4" or an 8 1/4" axle.

Riddler

Welcome to FABO Riddler:cheers:
Finding what you just fonud in your glove box is like winning the Duster Lottery!!!
A 7 1/4 has a very small "non round" rear differential cover where as the 8 1/4 has a rounder appearing diff cover.

.......Right on Burntorange stepped up to the plate