gearbox issues

Has anyone else had trouble with gearbox blowing oil out of the vent pipe when you take it up to high speeds top end of 5th (Justy or 1600awd box )

Any ideas ???

anyone

never had the problem with a suzuki...but ford gearboxes in the race car do it constantly. I run a large diameter hose to above the engine in the engine bay with a filter on it. Had to weld an adaptor to the gearbox lid...harder with the suzuki as they have no removeable top, could vent to high filter by adapting big bore hose over existing vent.

GTP
needing help locating an rust free awd rear subframe!!!!

yer i was thinking of puttin the pipe into the bottom of a catch can with filter on top to give it bit of expansion room, not sure whats causing it tho unless ive got a bit a drag from a worn gearbox causing heat and pressure