Driveshafts and Axles <br>Interchangeable driveshafts. Huh? The Rockota’s driveshafts are interchangeable between front and rear so you only need one spare. Stock ’81 Toyota truck axles hold 5.29 gears and ARB air lockers. Ultralow gearing comes from Marlin Crawler transfer cases for a 223:1 overall low. The steering setup was transplanted from a ’78 Ford F-150.