Ferguson Research converted at least two Ford Mustang notchbacks in the 1960s into all‑wheel‑drive cars fitted with 289 V8 engines and automatic transmissions.
The conversion used a roughly seventy‑pound viscous‑coupling center differential that split torque about 63 percent to the rear and 37 percent to a front differential, and required rotating the Mustang transmission so the oil pan cleared a thin front driveshaft. Ferguson Research believed the system could suit police pursuit and emergency vehicles.
Harry Ferguson, founder of Ferguson Research, had earlier developed AWD race cars and pursued road‑car applications after his tractor business; the firm’s layout resembles later mass‑production AWD systems. At least one of the Ferguson all‑wheel‑drive Ford Mustangs reportedly survives and has been examined by enthusiasts.
Read the full article at theautopian.com.
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