And a reply that I just received from Getrag themselves:
Dear Mr. Cribb,
thank you for your e-mail below and your interest in GETRAG products.
Please be informed that ...
GETRAG has produced in the past the (GETRAG internally called) type 286 transmission for use in the BMW 850i/CSi, as well as the (GETRAG internally called) type 233 transmission for use in the Toyota Supra Turbo and Non-Turbo variants (V160).
Despite the fact that both transmissions have been 6-speed - so-called Inline transmissions for rear wheel driven vehicles - : As you could figure out by our internal numbering system the numbers are not the same, thus the transmissions which we have used for this BMW applications and these Toyota vehicles were quite different.
Both transmissions were tailormade for our respective customer, the OEM (different center distances, different housings, different centres of gravity, different ratios, different weights, different fixation points in the frame of the vehicle, different ..., etc. p.p.). => These 2 transmission types are not interchangeable, i.e. it is not possible to exchange simply the bellhousings and then use the transmission for another purpose.
No matter what other retailers, tuners and/or any other "crack" may do (or be capable of), we have to inform you that ...
- the 286 was designed, developped, successfully tested and approved for use in the standard "850" SOLELY in accordance with our customers (here BMW) requirements
- the 233 was designed, developped, successfully tested and approved for use in the standard "Supra" SOLELY in accordance with our customers (here Toyota) requirements
- thus any other usage of either one of these transmissions will automatically result in a non-acceptance of GETRAG for any potential claim and/or misfunction of the transmission and therefor GETRAG will not bear any responsibility for such "abuse" or its outcome/results