Fellow Sailors, My 1985 Hunter has a 1" traveler track for the main sheet traveler with two control sheaves. The car no longer runs smoothly and I would like to replace just the car without replacing the entire rig. Apparently the new one are all made for the 1 1/8 inch track. Any ideas about how to find one that fits? Rig Rite has them on the web page but they are not available. Would those of another manufacture work?Thanks,Greig