901 5-SPEED TRANSAXLE SPECIFICATIONS-GBOX Transmission

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GBOX, INC.

455 YOUNG CT. UNIT 1

ERIE, CO.  80516

303-440-8899

GBOXINC@YAHOO.COM

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Mon-Fri > 8am - 5pm MTN.

Sat-Sun > By Appointment.

901 5-SPEED TRANSAXLE SPECIFICATIONS

911 Transaxle

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)