Nick, is this one of your gearboxes fitted to this car??
The reason I ask is because I now own the car shown....
I haven't had a proper look at it yet... but it seems to be missing the two screws that would normally fix into the bottom of the standard Losi case... is this correct as there doesn't seem to be any corresponding holes in the 4-gear gearbox casing. The gearbox does flex a bit, independant to the chassis.