Originally posted by Difuser
For the center you will have to order a second locked pulley for the car. File a new flat onto the Layshaft so the set screw can bite into it. Then file 2-3 mm off of the spur gear holder this will take it very close to flush with the spur itself. Congratulations you have now locked the center shaft up. The parts shipment with the locked pulley should be in the US anytime now. Mr Medel was expecting them "anyday". I also ordered a second layshaft, spur holder and pulley so that if running a 1-way I don't have the modified parts in.
Or for the cenrer you can but a spare locked pully, file the pully down and pin it onto the layshaft. Rick