/6-225 to 318 Scamp conversion

Also, the nice thing about some of the later transmissions, is that you can run lower rear end gears and still get decent mileage with having the overdrive. It's a matter of which trans it is and if you can get the electronics to work without major mods. You also have to do some trans mount, driveshaft, and maybe some tunnel work to get some of them to fit.