I'm running a VTS box with mi clutch and 6 engine, and am having difficulties dropping down to 2nd at high speed/revs.
Heel towing makes it a little better, and it goes into 2nd easily when driving gently, but when diving it some it takes a bit of force followed by an unpleasant crunch.
Given that it seems fine at slow speed, does it sound like something more serious that just adjusting the gear rods?
Many thanks
Graham