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The 71 transmission is Nissan's strongest transmission. It was fitted to L-series six cylinders, FJ engines and more. 71 series comes in four different lengths, however a stumpy version is the same length as a Datsun 1200 transmission though obviously much larger around. The stronger 71B replaced the original 71A designs around 1980.
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Lengths
Long extension housing is the most common.
Overall Transmission Assy Length Long tail: 31.5 inches Short tail: 26.3 inches
Stumpy
- 71-Series Transmission
- Skyline DR30 (FJ20 engine with 71C)
- Datsun 720 pickup USA (71B)
Skyline DR30 transmission
71A
F4W71A Long housing
- 1969-1971 240Z 4-speed
FS5C71A Long housing
- Removable bell housing
- Datsun Roadster with U20 bell
- Datsun Roadster with R16 bell
- Datsun 240Z early USA dealer installed with L-series bell
71B
Look for 71B cast into the transmission case.
F4W71B
(1972-1982) long housing. Rear extension of transmission has bolt-on cover plate.
- 1972-1973 Datsun 240Z
- 1974 Datsun 260Z
- 1975-1978 Datsun 280Z
- 1979 Datsun 280ZX
- 1974-1978 Datsun 620
- 1979 Datsun 720 with L20B engine
- 1980-1982 Datsun 720 with Z-series engine
- 1975-1980 Datsun 810/Maxima six-cylinder
FS5W71B
Long extension housing
- Datsun 200SX (S110) with Z20 engine
- Datsun Maxima (810) with LD28 diesel
- Nissan 720 with SD diesel
- Nissan 200SX with CA18ET engine
- Datsun 720 long tail
- 1977-80 Datsun 280Z
- 1979 280ZX (non-Turbo)
- Datsun 810
- Datsun 620
Short extension housing
- Datsun 720 stumpy/shorty
Engines L-series (various) Z-series (S110) LD28 diesel (Maxima) SD diesel (Nissan 720) CA18ET (Nissan 200SX)
71C
FS5W71C Nissan 300ZX (non-turbo, turbo uses 90-series) early Nissan D21 (Hardbody)
VG-series (V6) Z-series
Interchange
Like transmission parts interchange:
- 71A bell housings
- 4-speed to 4-speed
- 5-speed to 5-speed
- 71B/71C front cases
Complete transmission units of the same length interchange. For example, replacing a shorty FS5W71B with a shorty FW471.