[Fot] Spifire tranny ...

[Clark W. Nicholls]

I agree it is the snap ring on the mainshaft.
Never use a used one, always new!
If you need to take it off, use another new one (buy several).

If you hold the shift lever to keep the tranny in gear and let off on the
gas you'll notice the lever move (try to move). That is the gears moving on
the mainshaft due to the snap ring coming out of the groove. There is a
thrust washer in there too that can get damaged.

Been there....

Clark
Clark W. Nicholls
'72 Stag '74 Spitfire
"Reality... It's not what you think."