Outer Limits 4x4 Board

Hi guys dose anyone know how to run duel transfers in a mk as i want to fit 43s so need a reduction in the gearing. Also can i runone transfer in low box all the time and then run the second on in low when off road. My mk is a swb but i am moving both the axels further apart so the wheels clear the doors so i should dtill get a good rear prop on it.

prob better getting gq box/xfer infront of the divorced xfer if you got room, but then you will need motor,