can you turn the case over and run a tube from fill hole to drain hole and move vent ? want to use dana 20 or 18 or 300 on my wagoneer if it's chaep ? it's only a mud truck so can it be done. 74 cj to a 89 wagoneer . wagoneer have's 76 amc 360 82 4 speed or i can use cj's 3 speed ...