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 4L60E REVERSE BOOST VALVE KIT

Sonnax 77898E-K 4L60E REVERSE BOOST VALVE KITSonnax