@Greendog posted:John, I am actually trying to do a three rail version. If you can tell me whose China Drives you used and what is the metal chassis piece taken from??? Thanks...Your photos are great!!! Greendog/Pete
Greendog -- Using the China drive would make it easier since the side frames aren't bearing surfaces. I could never find a drive like that with the correct wheel base, but they exist from looking at these pictures.
Good luck!