Please decode the following numbers:

Metal Tag:

3 968011 WL

Tail:

3857584 GM

Right side:

3925661

POT6B

Build sheet states:

WL

The tail housing 3857584 is for 65-70. The main case casting # 3925661 is 71-74, but some 70 have this also. POT6B is date code and type of trans, P- Muncie, O- model year, T- Dec, 6- day , B-2.20:1 first gear close ratio M21. Thats all the info I have.