I've fitted the new clutch and machined flywheel, but I'm having a horrid time trying to put the gearbox back on. The shaft is sliding into the clutch disk okay, but something is stopping it from going all the way in. The box is stopping about 10-15mm short of the block. Everything is lining up okay, but it just won't go all the way in.
Any ideas on what could be happening? Any tricks I don't know about? I just can't work out why it won't go back on.
The engine and box are from a Beams SS-II.
Thanks in advance.