Hi Meat,
You would find that the RZ Tranny would be quit a bit taller than the banshee. Have looked at it a couple of times and worked out that I would need to install a larger rear sprocket (not available - have to adapt one) as a friend has tried it and found that he has to slip clutch a lot to get of the line but once moving not a problem just missing holeshot.
I still have my RZ bike in use on the road. I am fine tuning the performance side of thing first before installing in Banshee. I will proberly use the banshee tranny. My engine casein banshee is already a RZ one with all the banshee bits inside (mate smashed bike and destroyed engine case)
Rabbit