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[Datsun 1200 encyclopedia]

Transmission Gear Control

Revision as of 22:29, 18 December 2014; view current revision
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Category: Transmission

The 3-speed used a column shifter attached to the steering column. 4-speeds and 5-speeds use floor shift mechanism that is integral to the transmission itself.

Also see: Automatic Shifter

Contents

Overview

18191.jpg

Shift Knobs

クシフト ノブ

8mm x 1.25 threads

The stock Datsun 1200 4-speed knob is black.
50.JPG

3-speed column-mounted shifter:
2760.jpg

3623.jpg KB10 Sports option 6580.jpg Sunny 1000

2209.jpg options 3157.jpg Stock GX-5

11443.jpg PB110 2871.jpg Custom Knob

9082.jpg B-210 8267.jpg B310

10121.jpg aftermarket? 10712.jpg Classic 8-ball

If you want just the pattern on top, you can buy those from Autobarn and other similar stores as a badge with sticky back.

16869.jpg 16999.jpg 22094.jpg 22124.jpg 22294.jpg 22462.jpg 22463.jpg 22464.jpg 22465.jpg 22466.jpg 22467.jpg 22468.jpg 22469.jpg 21827.jpg

Shifter Bushes

The bushings become dry rotted,broken. New ones restore your shifter for tight, precise shifting again.

I got tired of the shifter in my 1200 flopping around, so I changed the bushings. It took about 5 minutes. I don't know what happened to the old bushings, I didn't see any in there at all. It was nice and tight last year, but one day it just started flopping. I reckon the old ones shattered into a million pieces. Anyways, for 5 minutes and 5 dollars, it sure works better now.

About $10 USD from Nissan.
23575.jpg 
Complete kit with rubbers
19139.jpg

6721.jpg
Top: two plastic bushes, stock type.
Bottom: Racing aluminum bushings for better control, but transmit vibration.

8632.jpg
"Head" bush at the end, regular bushes on the side of the hole

8631.jpg 8632.jpg 23579.jpg 23580.jpg

Short-throw Shifter

A short-throw shifter is longer below the fulcrum, so you only need the move the shifter a little to move the gears a lot.

Of course if the fulcrum is higher up on the shifter, you need to move the fulcrum mount point on the transmission up higher to match.

Discussion: How to make a short shifter

Simple Method

Lengthen the shifter bottom section: cut just below the fulcrum pin in the round part. Then just weld in a piece of 3-4mm steam pipe 1 - 1.5 inches long then weld the fulcrum back on top. On the stick cut the bottom off and exten it the same amount and then weld the ball back on.

Or instead of modifying the 56/60-series shifter, use an L-series shifter (which has a higher fulcrum).

To modify the transmission, bolt extension plate on the shifter brackets:
21815.jpg 21816.jpg 21814.jpg

Pro Bracket

610.jpg 611.jpg 13238.jpg
Angelo made the adapter and stick to move the fulcrum point up about 1.25"/32mm. The stock shifter moved about 6-7" from 1st to 2nd, now it moves only 3". Side to side movement is still the same as before. It has taken me a few days to get used to. The throw is so short, it's difficult to go from second to third and from fourth to fifth. Tap the original holes for the fulcrum pin with an M10x1.5 and used short flathead/countersunk M10 screws to mount it.

Another version:
13473.jpg

63/71 Shifter

63-series and 71 series already have a higher fulcrum point. Some later 71-series are adjustable for low- or high- fulcrum.

1984 adjustable shifter re-bent similar to 1200 shifter:
21825.jpg

Comparo

Pictures thanks to DatzenMike.

Adjustable, just reverse the plastic insert to fit different transmissions:
th_doglegshiftoptions002Large.jpg th_doglegshiftoptions003Large.jpg

There is a difference in pin heights on the FS5W71B transmissions.
4-speed & 5-speed up to 1980
th_5speedfor710goon010Large.jpg


4-speed & 5-speed AFTER 1980
th_5speedfor710goon012Large.jpg

Some FS5W71B shifters from 720/S110 in multiple lengths
th_shifters003Large.jpg th_720shifter004Large.jpg
The two plastic bushings and the spring inside can be swapped upside down to move the pin hole higher up to move the fulcrum point up.

Part Numbers

Shifter Bushings

  • Nissan 32855-H1010 - manual transmission. The original part number was 32855-24900. (2 required).
    8631.jpg

These bushings fit:

  • 1967-1970 B10
  • 1971-1973 B110
  • 1974-1978 B210
  • 1969-1973 510
  • 1977-1980 810
  • 1973-1979 620
  • 1980-1985 720
  • 1977-1983 200SX
  • 1969-1973 Patrol

Shifter End Bush

  • Nissan 32861-24900 BUSH-CONTROL LEVER HEAD

Shift Knobs

4-speed Shift Knob

  • Nissan 32865-H1000 replaced 32865-27700


Boots

19139.jpg

Also see: Console

Large Boot

Also see: Console

Interior shift boot (large boot)
6574.jpg 23579.jpg

74963-20900 BOOT-CONTROL LEVER $11 USD
th_change_lever_dust_boot.jpg
108mm overall diameter
13mm hole
74963-H5000 $30 USD
th_74963_H5000.jpg
110mm diameter overall
15mm: lever hole diameter
85mm: floor opening diameter
Compare with 510/620 boot, which is for a larger opening
th_510_620_shift_boot.jpg
137mm diameter overall
15mm: lever hole diameter
99mm: floor opening diameter
 

Small Boot

At transmission (small boot)
22101.jpg 22102.jpg

32862-G1200 BOOT RUBBER C/L $4 USD
* replaces:
** JAPAN 32865-H1000
** USA To 0373: 32862-24900 BOOT-RUBBER CONTROL LEVER
** USA From 0473: 32865-H1000 BOOT-LEVER CONTROL LEVER

TM-02_TM-3a.jpg

Interchange

These all interchange. Bends/length differ.

  • 56-series shifter
  • 60-series shifter (both 4 & 5-speeds)

The 63-series 5-speed shifter fits deeper into the transmission, so does not interchange. CONVERSELY, the 60-series shifter does not work well with the 63-series 5-speed, as the length of the shifter from the crossbolt to the plastic pivot point at the end of the shifter is about 10mm shorter. But 60-into-63 might work in a pinch.

The B310 floor boot is different:
th_B310_floor_shifter_boot.jpg

32862-H7300 BOOT-RUBBER CONTROL 4-speed,5-speed, 56,60-series $4.87 USD
75950-H8510 BOOT-CONTROL LEVER [Floor hole] COUPE OP.SEDAN $28.55 USD
75951-H9100 HOLDER-BOOT SEDAN.DX $6.30 USD
* 75950-H9100 BOOT-CONTROL LEVER SEDAN.DX (BROWN) $63.52 USD
* 75950-H9101 BOOT-CONTROL LEVER SEDAN.DX (BLUE) -0779 $57.12 USD
* 75950-H9103 BOOT-CONTROL LEVER SEDAN.DX (BLUE) 0879- $63.52 USD
* 75950-H9102 BOOT-CONTROL LEVER SEDAN.DX (BLACK) $63.83 USD