1972 scamp 318 STOCK
to ID your rear:
Then look for a metal tag on one of the cover bolts- it will have the ratio stamped on it. If the tag is missing, jack the rear up and spin the tire, counting the number of times the driveshaft spins, that will give you a close approximation- i.e. 3.23:1. Your other option is to pull the rear cover and look for the stamp on the ring gear.
to ID your rear:
Then look for a metal tag on one of the cover bolts- it will have the ratio stamped on it. If the tag is missing, jack the rear up and spin the tire, counting the number of times the driveshaft spins, that will give you a close approximation- i.e. 3.23:1. Your other option is to pull the rear cover and look for the stamp on the ring gear.