my gearbox drops out of 5th. any cheap fixes?

[THA SHZ]

if u need another box just let me know bro , i got one sittin here real cheap

[yobbosayo]

aw yeah, another box eh? Nah, I don't think so, I think I'll just get my original one rebuilt so I know where I stand. It had better ratios in it anyway, taller 5th gear. we decided the replacement one must be JDM spec (3500rpm at 100k instead of 2700rpm)
hey, pete, I'm still thinking about that auto fxgt you had, so if you decide to flick it on drop me a line ok? cheers

[THA SHZ]

yeah mine was a nz new box aswell so had the taller 5th gear , but second can granch a little wen givin it a bit of death and i'll still be selling that auto fx as soon as mine is finished , so do u wana pm me your phone number agan , i think i may have deleted it by accident