Thinkin' Outside The (Gear) Box

Thinkin' that ol' Skankweasel will hopefully be putting out more grunt than yer average 

Speed Twin, thoughts have been centred around beefing up the standard rigid gearbox mounting and adjustment setup. Started looking through pics of fifties drag bikes, to see what they did to keep things on the straight and narrow in that department. Couldn't see much, the old reproduced photos don't really lend 'emselves to close scrutiny. 

This trick Trophy was in among the same file.

I know it's a Beezer box, but that's gotta be the way forward ain't it?