Gearbox Type MS (4 speed) & PS (5 speed)
  Part Number Description
1 MS Layshaft with first gear
  15 MS/1 Mainshaft
  20 MS Selector fork for first and second speed gear
  42 WQ/2 Bearing for selector lever shaft
  43 WQ/3 Housing for selector lever shaft
  43 MS/1 Bush for reverse gear
  45 MS Speedometer gear on mainshaft
  50 MS/3 Spindle for speedometer drive
  69 MS Constant mesh gear on layshaft
  104 MS/2 Shaft for selector lever
  117 MS/K Second speed gear on mainshaft (comes as an assembly - see 252 MS)
  135 MS/K First speed gear on mainshaft (comes as an assembly - see 252 MS)
  141 MS/1 Oil seal for constant mesh pinion and speedometer drive housing
  145 PS/1 Constant mesh fork for overtop rocking lever
  146 PS/1 Selector fork for overtop layshaft gear
  148 PS/K Dog for constant mesh pinion
  149 MS Housing for layshaft bearing - front
  164 MS/K Third speed gear on layshaft
  165 MS/K Third speed gear on mainshaft
  186 MS Selector fork for reverse
  187 MS Selector fork for third and fourth speed gear
  193 MS/2 Rod for 3rd and 4th gear selector fork
  199 PS Selector lever
  214 PS/1 Overtop rocking lever
  224 MS 4 speed casing
  233 MS/1R Reverse gear assembly
  244 MS Housing for layshaft bearing - rear
  252 MS First and second speed gear assembly on mainshaft
  261 PS Selector lever - overtop
  266 MS Flange for mainshaft
  308 MS Constant mesh pinion