This is my older brother's '87 W-150. It has a 383 BB and 727 trans. Im not real sure about the transfer case but I do know it has a Dana 44 up front with new Warn Manual Hubs, Chrysler 9.25 in the rear, both with 3.23 gears. It also has 4" suspension, and 3" body with 33" thornbirds on 15X10 Rockcrawlers. It has a Rollbar out of a chevy stepside and bucket seats out of a late model Dodge Daytona.