mcneil, i'l try the axle idea i always cut the axle in half cause i never thought it was possible to get it to fit. what was the spacer made out of? it's a good thing somebody finally told me how to actually assemble it. i've tried probably over 20 designs and not one of them was success. i've torn apart 30-40 cars and hopefully not much more.

edit: do you have any pics cause that would help so much.