Sonnax 34716-01 Sealing rings input shaft oversized fits 4L80-E, 4L85-E
Delivery time
You will receive your package in 2–5 business days within the contiguous U.S.
Delivery time
You will receive your package in 2–5 business days within the contiguous U.S.
Fitment Type: Direct Replacement
Items Included: 2-Pack Oversized Sealing Rings
Manufacturer Part Number: 34716-01
Country of Manufacture: United States
Mounting Hardware Included: No
Vintage Part: No
Brand: Sonnax
Type: Input Shaft
Interchange Part Number: S34178BOSK
Surface Finish: Steel Springs & Rollers Only, No Retainer
Country/Region of Manufacture: United States
Universal Fitment: Yes
Performance Part: Yes
Package Quantity: 2
Requires:
GM 4L80-E and 4L85-E forward drums are often replaced due to wear of the sealing ring bore caused by contact with the input shaft. Contact between shaft and drum occurs because of looseness/wear of the support bushings and tight clearance between shaft and drum bore. Worn drums can be salvaged by machining away the worn area, increasing the bore I.D. to .900" and installing the Sonnax oversized outer diameter forward drum sealing rings 34716-01. The oversized seal diameter restores proper sealing with the larger bore, while the increased clearance reduces future wear by making clearance consistent with other applications.
Tool kit [34716-TL] is not required but is highly recommended to prevent damage to the new oversized sealing rings when inserting the input shaft into the machined forward drum I.D. bore.
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