T-10 research input requested

[Verne_Frantz]

Thank you very much. Just what I was looking for. '63 Muncies are also in my sights (anything pertaining through '64 big car production that's authentic)
Thanks again
Verne

[hubleyman]

I don't have one with a VIN but here's a T-10 I have sitting around that came out of my old April built '63 Corvette. This one has the small front bearing/retainer and is a T10D-1 main case.

I do have a couple of questions though:

1. Why would some gearboxes get stamped with the VIN and some not?

This particular trany has the number 56 stamped in the top just above and near the side cover. Any idea what that number might represent?

I'll also post a couple other photos of the casting date and the previously mentioned number 56....

[hubleyman]

Here is the casting date.....

[hubleyman]

Here is the stamped number 56...... Must have had some sort of identification meaning for them to bother stamping it????

[Verne_Frantz]

I've seen a few of those odd double digit numbers on T-10s, but I haven't been able to tie them to anything that made sense.
As for the trans not having a VIN stamp, all Corvettes in '63 and hi-perf passenger cars (300hp & up)were "supposed" to have the VIN stamp.
While it's possible that the St. Louis Corvette line skipped stamping that one, I'd think it's much more probable that the trans is from a 250hp 327 passenger car. IT's also possible that it's a service replacement trans.
Thanks for the input.
Verne