Muncie assy date versus vin

[ssl78]

Working on a corvette that has a Muncie and a 12 bolt rear end. The Muncie build date is P9A but the vin number is a 672 number sure seems to far apart but definetly not a restamp. It also has a BV rear end.

[firstgenaddict]

I've seen that 4 used in quite a few April BV & BE rear ends...