The 1-2 accumulator bore in the GM TH350 and TH350C cases can become worn or scored from repeated oscillation during normal operation. This can result in delayed engagements and 1-2 slip from low line pressure, which could cause intermediate clutch failure. Once the bore is damaged the case must be thrown away. Sonnax 1-2 accumulator sleeve kit 35719-01K restores hydraulic integrity and saves worn cases.

Allows cases to be salvaged
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

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