This drive has the same internals as the XR. The case has a factory steel tower, the teeth are straight cut, the U-joints and input shaft are large. I have pictures of the inside of the case and all gears, the upper is assembled with new thrust and torrington bearings. The lower is 1.35 ratio, dual water pick-up, with the 1 1/4" propshaft. This drive is in great condition, PM me for pictures or more information. The complete drive $3,500.00