With parts in hand, I headed back to the shop, where in a single evening I had the tailshafts swapped out, the internals of the transmission inspected, and the entire assembly back between the framerails of the F-1 in preparation for the crossmember and motor mounts to be installed. When the time comes for the trans to be installed permanently, it will be filled with Synthetic ATF and 12 ounces of Lucas Oil. But for now, the shifter falls just under the dash and clears the stock seat assembly and enables the use of a stock-looking early Ford shifter, all with the performance and reliability of a modern day, overdrive transmission.

Inspecting the internals Since the case cover was removed to install the shorter S-10 shifter shaft, it's as good a time as any to inspect the transmission internals. Visually inspect all parts except O-rings and oil seals, which should be replaced with new parts. Draining the oil out of the trans is necessary to thoroughly inspect the internals of the transmission and makes the mess slightly more ruly. Be sure to inspect the trans oil for metal shavings or other indications of unnecessary contact or wear and inspect the internals and case as well. Check the gear tooth contact patterns and compare with the diagram shown. Parts with contact patterns shown in the accept column are good to go. Those in the reject column will wind up being wall art. The gear and spline teeth also need to be inspected for chipping and compared to the diagram shown. Small burrs, nicks, or chips that fall under the repair column can be blend-repaired using a high-speed, handheld grinding tool. The repair should be blended into the surrounding area, removing as little material as possible and leaving a smooth contour, devoid of any sharp edges. The gear teeth also need to be inspected for contact patterns and replaced as needed. The spline teeth will not show such wear, but may show signs of step wear, which warrants replacement. Inspect the clutch teeth as well for rounding. Face rounding will cause the clutch to jump out of gear. Clutch teeth with rounding on the end are usable, but will result in hard shifting. Burrs, nicks, or chips can be repaired in the same manner as gear teeth.