distinct-dub

any one been inside there box??? can you flip the diff in a 2wd box to give 5 reverse gears and one forward?? im looking for a dead gearbox 2wd just to measure up to test wether it will fit in my project motor and to play around with the internals. A turbo box would be prefered but been told there's not much difference in a none turbo. if any one has one they have proudly killed or can point me in the right dirrection it would be appriciated.
please email at distinct-dub@graffiti.net thanks