Sonnax 34838-01K Direct Drum Sleeve Kit for Worn Direct Clutch Drum Bores

The Sonnax 34838-01K Direct Drum Sleeve Kit is an automatic transmission repair part. It salvages worn direct clutch drum bores and restores hydraulic integrity at the center support piston ring locations.

Why it matters: Wear in the direct clutch drum bore from the center support piston rings lets 3rd and Reverse clutch apply oil leak to exhaust. This leakage can lead to direct clutch failure, delayed or no 3rd or Reverse, slipping in 3rd, or no 4th gear.

Key Features:

• Repairs a worn direct clutch drum bore instead of requiring drum replacement
• Restores sealing at the center support piston ring locations
• Kit includes a sleeve and a spring pin
• Machining of the direct drum is required for installation

Sonnax recommends tool kit 34838-TL for installation. It is noted as no longer in production.