This kit makes extensive pump modifications needed to avoid pump failure. Shift slippage is a real concern in this transmission. This kit cleans up this problem very effectively. The KE4OD Shift Correction Package includes a metal replacement drain back valve to replace the O.E. plastic valve. The O.E. valve can melt, cutting off lube to the overdrive planets causing failure.
BILLET OVERDRIVE PLANET 4L80E
727/518/618 Super Servo Kit
518 Steel Governor Valve
727/518 Low Reverse Super Servo
5R110W L/R Snap Ring
Heavy Duty Input Shaft
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