First for 1200rallycar: it will pul as low as 2500 but not full throttle, it needs to be at about 4k for that. The 39mm flatslides are a touch big for the mild state of tune. It's happy abpve 4500 RPM's.

Dave it's pretty likely the syncro is gone, it just seemed odd that it was fine prior to disassembly. Of course as the bits of third went twirling round the box at 7000 RPM's they could have damaged other things. The fact that it goes into gear at lower speeds is probaly a case of having more time to match the RPM's.

Tom