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Old 11-16-2015, 08:23 PM   #2
Senior Member
Join Date: May 2009
Location: No longer here
Posts: 6,257
Re: TH400 - dumping fluid!!!

GM transmissions do not require RTV, Anywhere!

Go to a local transmission shop & get the correct O-ring.

If you want the Detent to work & not drop the Pan again to change the Detent Solenoid, Here is a whole kit, Passthough, O-ring, Detent Solenoid, & Solenoid Gasket.
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