ah someone with a r33 gtst turbo box issue like me mine started off as a 3rd to 4th crunch then a sometimes 2nd to 3rd crunch, engine blew up similar time so got engine rebuilt and box reco'd at trade price from working in a mechanic shop, still cost me 1200.. box had done less than 12 months driving and same thing only this time it jumped out of 3rd gear while even lightly accelerating, pulled box out...AGAIN...cost me another 900 to fix, apparently 3rd-4th selector fork broke and this wore out something else etc.. u know what shit they dribble, anyway, my experience with the ever so apparently tough r33 box has not been goood, i had a excedy h/d in there before first rebuild then while engine and box got rebuilt i put in a hks twin plate, so far box is ok but only done 5k since been fixed...running castrol vmx 80...