James’ 1974 W200 build

Speaking of mileage, one could add a GearVendors unit between the trans and transfer case .

Of course that would require moving the transfer case back and modified drive shafts .
It would allow you to split gears even in four wheel drive and give you overdrive for mileage on the highway . It would cost a bit though, under 4 grand (gasp) . Just a thought .