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34716-01 - Sonnax® GM Chevy 4L80E 4L85E Forward Drum Oversized Sealing Rings
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SKU
34716-01
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Regular Price $7.60
Sonnax® Forward Drum Oversized Sealing Rings
GM Chevy 4L80E 4L85E
Sold As Quantity 2 Per Package
- Buy 5 for $7.22 each and save 5%
- Buy 10 for $6.84 each and save 10%
Sonnax Forward Drum Oversized Sealing Rings
GM Chevy 4L80E 4L85E
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.
Salvages all 4L80-E and 4L85-E forward drums with grooves worn in the I.D. bore
Reduces the likelihood of future contact between forward drum I.D. and input shaft
Material: PTFE
Seal Style: Solid
Height: 0.096"
Width: 0.101"
Outer Dia.: 0.918"
Symptoms:
Wear grooves in the Forward drum ID bore
Delayed engagement
Burnt Forward clutch
Cause:
The input shaft contacts the forward drum bore ID due to tight clearances and accumulated bushing wear.Correction:
Install the Sonnax oversized seal rings after boring the forward drum to the recommended diameter.
Sold As Quantity 2 Per Package
| Manufacturer | Sonnax |
|---|---|
| High Performance | No |
| Condition | New Aftermarket |
