I run one of Cope's transbrake valve bodys and don't honestly remember John telling me to NOT put the vent in the rear, when I put the new billet steel high gear drum in I drilled the piston which pushes the fluid toward the rear,, with that said I have not had a issue from the rear vent.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
