911 1978-1983
Porsche type 915 transmission specifications 1972-86
915/02
911 1972-74
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.96 (26/25)
5th gear: 0.76 (29/22)
Ring and pinion: 4.43 (7:31)
915/06
911 1975
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.93 (27/25)
5th gear: 0.72 (29/21)
Ring and pinion: 4.43 (7:31)
915/08
911 Carrera RS 1973
5-speed synchronized transaxle w/tail-cover oil pump
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.93 (27/25)
5th gear: 0.72 (29/21)
Ring and pinion: 4.43 (7:31)
915/35
911 S/T 2.5L 1972
5-speed synchronized transaxle w/tail-cover oil pump
Manufactured by Porsche (ZF)
Plate-type limited-slip differential
Rod shift
Single-plate clutch
Gear ratios: see racing ratios
915/40
911S, Carrera (USA) 1975
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.82 (28/23)
Ring and pinion: 3.88 (8:31)
915/43
911 ROW 1975
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.96 (26/25)
5th gear: 0.72 (29/21)
Ring and pinion: 4.43 (7:31)
915/44
911, 911S (USA), Carrera 1976
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.82 (28/23)
Ring and pinion: 3.88 (8:31)
915/50
935 1.4L Turbo "Baby" 1977
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Rod shift
Single-plate clutch
Gear ratios: see racing ratios
915/60
911, 911S (USA), Carrera 1977
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.82 (28/23)
Ring and pinion: 3.88 (8:31)
915/61
911SC 1978-79
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.82 (28/23)
Ring and pinion: 3.88 (8:31)
915/62
911SC (ROW) 1980-83
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.79 (28/22)
Ring and pinion: 3.88 (8:31)
915/63
911SC (USA/Japan) 1980-83
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.82 (28/23)
Ring and pinion: 3.88 (8:31)
915/67
911 Carrera 3.2 (ROW) 1984-86
5-speed synchronized transaxle w/cooler
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.97 (29/28)
5th gear: 0.76 (38/29)
Ring and pinion: 3.88 (8:31)
915/68
911 Carrera 3.2 (USA/Japan) 1984-86
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.79 (38/30)
Ring and pinion: 3.88 (8:31)
915/69
911 Carrera 3.2 Turbo-look (ROW) 1984-86
5-speed synchronized transaxle w/cooler
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.97 (29/28)
5th gear: 0.76 (38/29)
Ring and pinion: 3.88 (8:31)
915/70
911 Carrera 3.2 Turbo-look (USA/Japan) 1984-86
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.79 (38/30)
Ring and pinion: 3.88 (8:31)
915/72
911 Carrera 3.2 Turbo-look (ROW) 1984-86
5-speed synchronized transaxle w/cooler
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.97 (29/28)
5th gear: 0.76 (38/29)
Ring and pinion: 3.88 (8:31)
915/73
911 Carrera 3.2 Turbo-look (USA/Japan) 1984-86
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 1.00 (26/26)
5th gear: 0.79 (38/30)
Ring and pinion: 3.88 (8:31)
