You can buy an adapter for a 700r4, and they are plenty stout to handle the 180# of torque from the om617, but I'd like to point out the gear spread is identical to the mercedes transmission, first in the mercedes is about 4:1 with top gear being 1:1, with the 700r4 the range is roughly 3:1 in first with top gear at roughly 0.8:1, changing the final drive to 2.5:1 assuming you have a 3:1 final drive will have a nearly identical effect.