on the face of the VTC at 9:00 (closest to the firewall) you'll see a small nitch in the face and a hole behind it half covered by the face plate. When the VTC rotates clockwise the half covered hole will rotate clockwise and you can put the small end of a allen wrench in it to hold it there. Duck tape the allen wrench in place and you' re good to go.How did you guys get it to lock back and what hole did you stick the pin into. I can move the VTC with air pressure but I cant feel the hole that I am suppose to pin. Any tips or tricks?