[Fot] What gearbox do I have in my TR3?

[Steven Belfer]

FOT,

I have a 62 TR3B.

I believe I have a TR6 transmission with close-ratio gears. (no OD)   
but I'm not exactly sure what's in there.

The main shaft is 1" with 10 splines.

I run a GT6 clutch disc and Pressure Plate and it all works great.

Does, in fact, the TR6 transmission have a 1" shaft with 10 splines?   
I'm trying to figure out exactly what's in my gearbox.

What type of CR gears might I have?

~Steve