Bigfoot
Gearhousing, Driveshaft - 2.31:1 Gear Ratio - Bigfoot - Mercury OEM Parts - iboats.com
Non Bigfoot
Gear Housing, Driveshaft - 1.83:1 Gear Ratio - Non Bigfoot - Mercury OEM Parts - iboats.com
Sterndrive Engineering: SE 205, 2.33:1, 20'' D/S, 4 Stroke, 30-50 HP, Big Foot
SEI Mercury Outboard DFI Alpha Repl Lower Unit 2.31:1 20"