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Most Datsun 1200s were fitted with a 4-speed floor shift manual transmission (FS4W56). However, the Standard trim models came with a 3-speed column shift (R3W56). This transmission had a higher 1st gear than the 4-speed (3.380:1 vs 3.757:1), meaning takeoff was a bit slower than the 4-speed, and starting on steep hils a bit more difficult. The 4-speed is a direct bolt-in replacement for the 3-speed.
Overview
Standard trim (STD) Datsun 1200 models came standard with an R3W56 transmission. This was a remote-shift box with a Steering Column-mounted shifter.
R = Remote shift W = Warner type synchros 56 = spacing between shafts (56-Series Transmission)
column shift
side-shift linkage
steering column shift linkage
The remote-shift gearbox is easily recognizable by its lack of an upright gear shift apparatus on the extension housing.
Ratios: Rev: 3.640 1st: 3.380 2nd: 1.734 3rd: 1.000
Note that the North American market got 4-speeds transmissions, never any 3-speeds.
Older B10 transmission, note the bell crank clutch mechanism instead of cable clutch:
See Transmission Overview for: * Maintenance specifications (oil type, capacity, etc) * Comparison of other B110 avaialble transmissions * Gear ratios * Link to the transmission swap article
B210 3-speed with Steering Column shift
