Gearbox compatibility (C66M in AE112?)

[leinadmp4]

As the title suggests, I'm wondering how compatible similar era Toyota gearboxes are, and how possible it would be to put a C66M into an AE112 with a stock 7A-FE? And if not, any other suggestions for 6-speed manuals (or autos) that would work well? The C160 is talked about a lot on forums but I'm not sure the tighter gear ratios would really suit the engine well.

Edited February 18, 2021 by leinadmp4

[Hiro]

Most C-series transmissions will mount up with the appropriate brackets.  I actually have a Celica C60 sitting in my AE102 as we speak using the factory C52 brackets (just one additional stay on the top gearbox mount that doesn't fit, due to the selector on the Celica 'box being on the top/front rather than the back).

The issue will be the bellhousing pattern, as the later C-series boxes come behind ZZ-series engines which have a different bolt pattern to the A-series engine (also, if you're indeed looking at a C66M then they are a horrid sequential-manual setup which would be a nightmare to transplant).

 

Actually come to think of it, I think the MR2s only came out with the C56M or the C66M in Australia, so I don't even know where you'd be getting a C66M from, and they're certainly not worth importing from overseas compared to a normal C160.  The best factory ratios would be the C161 or C162 but they only came out in Europe in the AE111 G6 which had the 4AFE (and thus needed the taller ratio to make up for the lower redline compared to the blacktop/C160)