901 5-SPEED TRANSAXLE SPECIFICATIONS
901/00
911 1964-65
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 2.833 (AA)
2nd gear: 1.778 (GA)
3rd gear: 1.217 (O)
4th gear: 0.962 (U)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
901/02
911 1966-67
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.091 (A)
2nd gear: 1.889 (F)
3rd gear: 1.318 (M)
4th gear: 1.040 (S)
5th gear: 0.793 (Z)
Ring and pinion: 4.43 (7:31)
901/03
911 1967-68
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.091 (A)
2nd gear: 1.889 (F)
3rd gear: 1.318 (M)
4th gear: 1.040 (S)
5th gear: 0.793 (Z)
Ring and pinion: 4.43 (7:31)
901/07
911 1966-67, 911L 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: (911 special-order, std 911L)
1st gear: 3.091 (A)
2nd gear: 1.889 (F)
3rd gear: 1.318 (M)
4th gear: 1.040 (S)
5th gear: 0.857 (X)
Ring and pinion: 4.43 (7:31)
901/13
911 1968-69
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.091 (A)
2nd gear: 1.889 (F)
3rd gear: 1.318 (M)
4th gear: 1.040 (S)
5th gear: 0.793 (Z)
Ring and pinion: 4.43 (7:31)
901/50
911 1967
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: (special-order)
1st gear: 2.643 (B)
2nd gear: 1.778 (GA)
3rd gear: 1.318 (M)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
901/51
911 1967
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('hillclimb' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 2.000 (E)
3rd gear: 1.550 (I)
4th gear: 1.318 (M)
5th gear: 1.217 (O)
Ring and pinion: 4.43 (7:31) or 5.33 (6:32)
901/52
911 1967
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('airfield' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 1.889 (F)
3rd gear: 1.476 (J)
4th gear: 1.217 (O)
5th gear: 1.040 (S)
Ring and pinion: 4.43 (7:31)
901/53
911 (911R) 1967
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('fast track' w/904 mainshaft)
1st gear: 2.400 (C)
2nd gear: 1.600 (HA)
4th gear: 1.217 (O)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
901/54
911 1967
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('nurburgring' w/904 mainshaft)
1st gear: 2.643 (B)
2nd gear: 1.600 (HA)
4th gear: 1.318 (M)
4th gear: 1.080 (R)
5th gear: 0.926 (V)
Ring and pinion: 4.43 (7:31)
901/75
911 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: (special-order)
1st gear: 2.643 (B)
2nd gear: 1.778 (GA)
3rd gear: 1.318 (M)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
901/76
911 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('hillclimb' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 2.000 (E)
3rd gear: 1.550 (I)
4th gear: 1.318 (M)
5th gear: 1.217 (O)
Ring and pinion: 4.43 (7:31) or 5.33 (6:32)
901/77
911 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('airfield' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 1.889 (F)
3rd gear: 1.476 (J)
4th gear: 1.217 (O)
5th gear: 1.040 (S)
Ring and pinion: 4.43 (7:31)
901/78
911 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('fast track' w/904 mainshaft)
1st gear: 2.400 (C)
2nd gear: 1.600 (HA)
4th gear: 1.217 (O)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
901/79
911 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('nurburgring' w/904 mainshaft)
1st gear: 2.643 (B)
2nd gear: 1.600 (HA)
4th gear: 1.318 (M)
4th gear: 1.080 (R)
5th gear: 0.926 (V)
Ring and pinion: 4.43 (7:31)
901/80
911 1969
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: (special-order w/904 mainshaft)
1st gear: 2.643 (B)
2nd gear: 1.778 (GA)
3rd gear: 1.318 (M)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
901/81
911 1969
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('hillclimb' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 2.000 (E)
3rd gear: 1.550 (I)
4th gear: 1.318 (M)
5th gear: 1.217 (O)
Ring and pinion: 4.43 (7:31) or 5.33 (6:32)
901/82
911 1969
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('airfield' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 1.889 (F)
3rd gear: 1.476 (J)
4th gear: 1.217 (O)
5th gear: 1.040 (S)
Ring and pinion: 4.43 (7:31)
901/83
911 1969
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('fast track' w/904 mainshaft)
1st gear: 2.400 (C)
2nd gear: 1.600 (HA)
4th gear: 1.217 (O)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
901/84
911 1969
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('nurburgring' w/904 mainshaft)
1st gear: 2.643 (B)
2nd gear: 1.600 (HA)
4th gear: 1.318 (M)
4th gear: 1.080 (R)
5th gear: 0.926 (V)
Ring and pinion: 4.43 (7:31)
902/1
912, some 911 1965-67
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.091 (A)
2nd gear: 1.889 (F)
3rd gear: 1.318 (M)
4th gear: 1.040 (S)
5th gear: 0.857 (X)
Ring and pinion: 4.43 (7:31)
902/02
912 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.091 (A)
2nd gear: 1.889 (F)
3rd gear: 1.318 (M)
4th gear: 1.040 (S)
5th gear: 0.857 (X)
Ring and pinion: 4.43 (7:31)
902/05, 902/06, 902/16
912 1969
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.091 (A)
2nd gear: 1.778 (GA)
3rd gear: 1.217 (O)
4th gear: 0.962 (U)
5th gear: 0.793 (Z)
Ring and pinion: 4.83 (6:29)
902/50
912 1968
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('hillclimb')
1st gear: 3.091 (A)
2nd gear: 2.000 (E)
3rd gear: 1.550 (I)
4th gear: 1.217 (O)
5th gear: 0.962 (U)
Ring and pinion: 4.43 (7:31)
902/60
912 1969
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('hillclimb')
1st gear: 3.091 (A)
2nd gear: 2.000 (E)
3rd gear: 1.550 (I)
4th gear: 1.217 (O)
5th gear: 0.962 (U)
Ring and pinion: 4.43 (7:31)
From 1970, Porsche used a pressure-cast transmission case and a 'pull-type' clutch with an aluminum pressure-plate
911/01
911 1970-71
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios:
1st gear: 3.091 (A)
2nd gear: 1.778 (GA)
3rd gear: 1.217 (O)
4th gear: 0.926 (V)
5th gear: 0.759 (ZA)
Ring and pinion: 4.43 (7:31)
911/80
911 1970-71
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: (special-order w/904 mainshaft)
1st gear: 2.643 (B)
2nd gear: 1.778 (GA)
3rd gear: 1.318 (M)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
911/81
911 1970-71
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('hillclimb' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 2.000 (E)
3rd gear: 1.550 (I)
4th gear: 1.318 (M)
5th gear: 1.217 (O)
Ring and pinion: 4.43 (7:31) or 5.33 (6:32)
911/82
911 1970-71
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('airfield' w/904 mainshaft)
1st gear: 2.833 (AA)
2nd gear: 1.889 (F)
3rd gear: 1.476 (J)
4th gear: 1.217 (O)
5th gear: 1.040 (S)
Ring and pinion: 4.43 (7:31)
911/83
911 1970-71
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('fast track' w/904 mainshaft)
1st gear: 2.400 (C)
2nd gear: 1.600 (HA)
4th gear: 1.217 (O)
4th gear: 1.000 (T)
5th gear: 0.821 (Y)
Ring and pinion: 4.43 (7:31)
911/84
911 1970-71
5-speed synchronized transaxle
Manufactured by Porsche (ZF)
Plate-type limited-slip differential available
Rod shift
Single-plate clutch
Gear ratios: ('nurburgring' w/904 mainshaft)
1st gear: 2.643 (B)
2nd gear: 1.600 (HA)
4th gear: 1.318 (M)
4th gear: 1.080 (R)
5th gear: 0.926 (V)
Ring and pinion: 4.43 (7:31)