[lincpimp]

Is it a 3.3 or the older style? With the older style you can go to a 72t spur and the smallest clutchbell, 14t?

If you want more reduction you could buy a set of hybrid bulks and use 1/8 truggy gearsets, 43/10 ratio. Kind of expensive, but not much else you can do unless you fabricate a tranny with a lower ratio.

The 3.3 tranny uses much smaller spurs, than the old maxx. If you put a large spur on that it would offer a lower ratio for better crawling. Not sure if there is enough adjustment on the motor to fit though.

Either way you will most likely have to fab some parts...