GD-600 Gear Reduction Retro for King Hauler

[mazdaparts]

Great write up and pics. I have used the GD-600 on my emaxx and stampede trannys in my rock crawlers for years. I turned the shaft down (rather sloppy) on the one for the stampede tranny and found a 5mm/32 pitch pinion for the emaxx tranny. They do have 5mm/48 pitch pinions although the smallest I found was a 13t.

[ricm]

hi there - I tried the GD-600 but found it too noisy - so I did a bit of DIY with some standard Tamiya gears and a shortened 'A-shaft' so noise is reduced. An alternative approach...







I solved the reversing of the drive by turning the rear axles upsidedown!