What's the diff.....??

[Rocketman72]

I have a rear differential I bought some time ago and I'm not sure what it is. out of so I really don't know what reference to use when ordering parts.

I'm pretty sure it's a 14 bolt Corp. SF gov. bomb with 6 lug axles, that fine and the ring gear says 11 40 so I'm pretty sure it's a 3.73. It is approx. 67" wide and the axle tubes are 3 1/4 wide, drums measure 11 1/4" I.D. and 13 1/2" O.D with approx. 3" lining or brake surface.

Numbers on cast iron are GM 1 and CFO 9690. Rt. axle tube is stamped RAL C2231.

Anybody have a hint at what I might have? What year/model it came from that I can refer to when ordering parts? Can I get a disk brake set up for this axle? Where?

Thanks.