Select your car
gear sets and shafts
gear set
1st gear
Z = 11:35
drive shaft
loose gear wheel
911 (72-73, 84-86) Gear wheel pair 2nd gear, 18:32 ratio
gear wheel pair
4th speed
Z = 27:25
loose gear wheel
fixed gear wheel
911 (72-86) Gear wheel pair reverse gear, 915 transmission