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05-07-2018, 02:05 AM | #1 |
Registered User
Join Date: Oct 2009
Location: LBC California
Posts: 497
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Th350 transmission seal/gasket picture diagram??
Hello.
Is there a picture diagram mapping the areas where the seals and gaskets are located in a TH350? I was quoted $700 for a complete reseal and maybe doing it myself would be best. I have a Chilton, but not very detailed on showing a picture diagram on where each seal and gaskets are located. How many seals and gaskets does a TH350 have? Anyone?
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- 1967 Chevrolet C/10 SWB fleetside (New Project). - 1969 Chevrolet C/10 SWB fleetside (SOLD) - 2000 Ford Mustang 232 (DD) - 2003 Ford SVT Cobra "Terminator" 281 (Once in a blue moon driver/weekend driver) |
05-07-2018, 06:35 AM | #2 |
Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: Th350 transmission seal/gasket picture diagram??
Wow, $700 is crazy
The pump seal and the torque converter seal require removal of the transmission. If the torque converter seal is leaking the bushing behind it is usually worn out. These two are easy to inspect to see if they are leaking. The pump o-ring rarely ever leaks. On the left side of the transmission you have the shift shaft seal and the speedometers bullet seals. Both are common sources of leaks. The shift shaft seal is easily replaced using a special tool. The shift shaft likes to leak after the vehicle has been sitting (overnight) On the passenger side is the dipstick tube seal and the kickdown cable seal. Oh yea, the 2-3 accumulator cover o-ring which I have never seen leak. Plus the pan gasket.
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My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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