Dana 27 axles were used for the front and rear wheels in the 80 and 800 models until around 1968. Both front and rear differentials were offset to the passenger side for the purpose of lining up the driveshafts with the Dana 18 transfer case. With the transition to the 800A model, the rear axle was upgraded to a Dana 44, with a centered differential mated to the Dana 20 transfer case (which had replaced the Dana 18). Some Scouts from this transitional time are a mix of old and new designs, with the rear driveshaft running at an angle. The front axle was still a Dana 27 model, though if the buyer ordered the 3500-lb axle option, the front axle was upgraded to a hybrid unit built from a Dana 30 center section and 27 tubes. The V8 engine option included an automatic upgrade to the heavier-duty Dana 30 axle. The rear axle shafts changed from two pieces to one piece around 1968 or 1969. A Powr-Lok limited-slip differential was provided as an option for both front and rear axles. Common gear ratios are 3.31, 3.73, or 4.27, though nearly any ratio was available by special order (in at least one instance, a Scout 800 was shipped with a 5.71).