The GMC motorhome was powered by an Oldsmobile engine driving an axle through a Turbohydramatic transmission which provided front-wheel-drive power. When GM decided to downsize the Eldorado and Toronado cars in 1979, these drive components became unavailable. The smaller, automotive, front-wheel-drive system used after 1979 was not appropriately engineered for use in the large motorhome.

Wheat Motor Co. must replace the drivetrain with currently available commercial units. Two designs for the transaxle as well as two comparable engines are being intensely analyzed in automotive design shops for WMC. Both systems will require appropriate frame and front suspension adaptations. Engineering design work has been done by Modern Engineering and Tri-Mode Engineering, both experienced Detroit automotive engineering companies.

A decision will be made by mid April on the optimum combination of engine, transmission and suspension. That decision will kick off an intensive design refinement and test program.

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