I don't think they ever put a parking on a tranny that big. Maybe somthing can be fabricated in the center on the drive shaft. Using the 13 speed is a cool idea, but it seems with a tranny like that with such a light truck it would be hard to shift. I think you would have to skip gears when your up shifting because you could not shift fast enough. I think a five or six speed would work better for you.
