in on-line schematics number 5 appears to be the wheel hub and steering mechanism. is this part available from any source? i think i need the left side as the control rod does not reach the hole it is designed to go into. the right side appears to line up correctly. hope you can help. if you have seen the problem of the left tire continuing to turn (as in to the left ) after the right side stops please advise. thanks, mike mead874@msn.com