RE: Revo Based Crawler (Nitro/Gas)
Here is another gearing idea it is a [link=http://www.maxonmotorusa.com/files/catalog/2003/pdf/03_Technik_kurzund_buendig_gear_28_29_e.pdf]planetary gear[/link] with this you can get 68:1 or more just depends on what you want. To make it work in nitro.......small clutch bell 14t or so to mount inside the planet gears..........the output shaft..........straight coupled to the input shaft of the Revo/Maxx tranny......eliminating the spur gear. The smallest one I have found so far is only 2 inches long with a 48:1 gearing so it wouldn't take up too much space.
Steve