Gary,
You can buy 3:1 gears in brass from Chicago Gears
they are for 1/8 inch shafts and beatifully made, 10ba grub screws cab be
used in the pinion and 6ba in the crown wheel..If I can make a suggestion,
the mating surfaces off the Osmotor are best lapped on 1000 grade wet and
dry,using a plate glass surface this will show up all sorts of posible leak
areas.But I do think fitting a set of David Baileys trucks is the best move.
Gordon Watson.
