This new internal speedometer gear fits 4 speed toploader transmissions.

Toploader transmissions were fitted with either of two mainshaft drive gears. 

Black gears were used for rear end gearing from 2.75 to 3.5

Pink gears were fitted for rear end gearing for 3.5 to 4.11

 

Use this handy chart to calculate your requirements

Based on 25.4" Tall Tyre

Driven Gear Pink Gear Black Gear
16 Teeth 3.25 2.75
17 Teeth 3.50 3.00
18 Teeth 3.70 3.25
19 Teeth 3.90 3.36
20 Teeth 4.11 3.55

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