Where do i start... I started with a 77 non locker. After finding it had 3 pinion planetary from and rear I pulled the 2.74 low gear and 4 pinion planetaries from a 79 lock up. Drilled 1 1/4 holes in the sun shell to lighten it. Removed the governor and dead weight on the output shaft. New stock sprag and rear support. Drilled evenly spaced 7/16 lightning holes around the low/reverse drum and direct drum. Billet aluminum forward drum and hardened input shaft from A&A with tan frictions. 5 tan frictions in the direct drum after machining the pressure plate down and playing with snap rings. Also used the reverse wound spring from ATI. Split low/reverse band and kevlar direct band. 5.0 lever. Spot weld a reinforced plate t the band strut. Tossed out 1-2 accumulator spring. Removed rear servo spring and locked with shims (washers). Deep aluminum pan with reusable gasket and reusable big brass filter.
