What kind of gearbox does the E34 M5 have?
All M5s built before May of 1994 utilize a Getrag 280/5 five-speed manual gearbox with the following ratios: 3.51 (1), 2.08 (2), 1.35 (3), 1.00 (4), 0.81 (5). This was mated to a 3.91:1 final drive on all five-speed M5s with the exception of North American-spec examples built after July of 1991, which have a taller 3.73:1 final drive for better fuel economy. In May of 1994, the five-speed transmission was replaced by a Getrag Type D six-speed manual gearbox with the following ratios: 4.23 (1), 2.52 (2), 1.66 (3), 1.22 (4), 1.00 (5), 0.83 (6). It came paired to a taller 3.23:1 final drive. All E34 M5s have a standard limited slip differential with a maximum locking of 25 percent.