What kind of gearboxes were available in the E12 M535i?
There were two different five-speed manual gearboxes fitted to the E12 M535i. All European-spec models were equipped with the Gertag close-ratio unit featuring a “dogleg” shift pattern and the following ratios: 3.72 (1), 2.40 (2), 1.77 (3), 1.26 (4), 1.00 (5). This same gearbox was also offered as an option on the South African-built model, though most were equipped with the more common Getrag overdrive manual transmission with the following ratios: 3.82 (1), 2.20 (2), 1.40 (3), 1.00 (4), .81 (5). Regardless of the gearbox option, all E12 M535i models were equipped with a 3.07:1 final drive and limited slip differential.
