Help needed! I think I have just destroyed my gearbox!!!

[devilsyam]

when i had nitro on the bike i bought this for a spare in case the box went bang with the extra oummmph but it didnt
came from a cat b write off box is mint

£150 which is what i paid for it and you get wot's in the picture motor wise
im in bristol and you got till the 5th or after the 19th to collect as away on epic usa tour
postage will be stupid as on me fishing scales over the 50kg limit it goes up to so god know the weight

luke