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Burnt forward and low/reverse clutch plates
4340 Shaft
BTU Rating 15
Early valve bodies contained five pressure switches that were never used or monitored by the computer
The Award Winning Ultimate Spring Compressor Tool Kit
77898E-6K sonnax 4L60E, 4L65E Boost Valve Kit .470" 1 groove Featured Products Burnt forward and low/reverse clutchBrand: sonnax Type: Pump Component Manufacturer Warranty: Yes Items Included: Boost valve and sleeve Manufacturer Part Number: 77898E 6K Universal Fitment: Yes Performance Part: No 4L60 E, 4L65 E Transmission Boost Valve Kit Part No. 77898E 6K Early pump design, . 470" dia., factory style, no O rings with OE ratio GM 4L60 E and 4L65 E transmissions frequently have poor line rise, which can result in 3 4 clutch, 2 4 band failure or poor shift quality.
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