IIRC;the A230 and A833 share the same pattern.
IIRC: the A745, and A903 share a different pattern.
A230s are fully synchronized and can handle street-340s no problem.The A230 has at least two ratios to chose from, that I know of.
As you probably know, the others are not, and while it's not that horrible to downshift into first, it takes a knack for it, and is definitely not for a performance vehicle. Also, the synchronizers are pretty lo-po, with narrow brass rings and such. I have rebuilt many hundreds of them, but, IDK how well they would work or for how long, at higher rpms.
Not much help, I know.
