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#2 |
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Registered User
Join Date: Feb 2015
Location: Santa Rosa, Ca.
Posts: 539
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Re: transmission quesstion/ Speedometer
The speedo Sleeve (what the cable actually screws onto) has 2 seals. One is an o-ring the seals the sleeve to the trans case. the 2nd is a small lip seal the seals the speedo gear to the sleeve. You can see both with the sleeve and gear out. I would assume both are available through Napa or GM.
Taken from the 73 to 78 parts book. TH400 sleeve to case seal= 6264904 all others except K series, sleeve to case seal= 6264903 speedo gear seal= 3869910
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1977 Chevrolet C/10 Silverado. Step-Side, Factory 454, TH400, 3.73 Posi 12 Bolt. 1975 Chevrolet El Camino. 350, TH400, 3.08 Posi 10 Bolt. |
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