Sonnax

77898E-K

Sonnax 77898E-K 4L60E REVERSE BOOST VALVE KIT

Valve Body Kits

Poor shift quality?
Sonnax valve and sleeve kits restore hydraulic integrity and prevent leakage. Kits are available in both stock replacement and increased boost ratio sizes for early-style pumps.
77898E-K for oversized ratio

sonnax 77898E-K Boost Valve & Sleeve Kit with O-Rings, .490" Diameter, early pump design Transmission - General Motors: 4L60-E, 4L65-E, 4L70-E High Performance Transmission - General Motors: 4L60-E, 4L65-E, 4L70-E

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