Need help with TH350
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From: Dothan AL for now
Need help with TH350 Ok I have a TH350 I am having problems with. I am no transmission expert so please forgive me if I mess something up. Well here is the problem I have a broken part on the tranny I believe it is called the Intermediate servo piston sits right under the Direct clutch 2-3 accumulator on the valve assy.
Well the servo is cracked in 3 places and the the seals and everything is cracked. I believe it was cracked when it was being rebuilt did not get seated right before they put the Valve assy on. Well I was wondering if I would be able to buy just the Intermediate servo piston assy or will I need another rebuild kit?
I have had no luck finding the part yet but have not really searched to hard being its the weekend. Also is that the right name for the part I believe the Tranny is an 1988 if that helps. Sorry if this sounds confusing like I say I am no expert at this. Thanks for the help.
Derek
Well the servo is cracked in 3 places and the the seals and everything is cracked. I believe it was cracked when it was being rebuilt did not get seated right before they put the Valve assy on. Well I was wondering if I would be able to buy just the Intermediate servo piston assy or will I need another rebuild kit?
I have had no luck finding the part yet but have not really searched to hard being its the weekend. Also is that the right name for the part I believe the Tranny is an 1988 if that helps. Sorry if this sounds confusing like I say I am no expert at this. Thanks for the help.
Derek
is this the part that stays with the valve body "plastic" sometimes or is the the part that goes in the case above it that falls out when you remove the valve body ?
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From: Dothan AL for now
Part that falls off when you remove the Valve body has a spring on it and it slides on a shaft. And is inside the case.
ok thats the intermediate overun band servo. Dont see them cracked or broken much odd. You should be able to order one from a parts supplier like "WIT" or a local older trans shop may have one laying around. They do not come in rebuild kits .
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From: Dothan AL for now
https://www.wittrans.com/Schematic.a...0C&Schematic=4
Ok if you look at this diagram it is part number 905 assy the part that is cracked is 907&195 like it was set in **** eyed you know. Thanks for the help! On finding the part would you carry it?
That is the part I described. We would not have one loose 
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I used to have boxes of that kind of stuff. If I needed one I could go tomorrow morning and get a core th350 (a complete rebuldable trans) for $20 from a junkyard I always go to, and take the piston out of it then have a pile of other spare parts.
Or like said above, try a private owned, non chain store type shop. They usually will sell you one. Although some have said th350's are hard to come by, I know where theres a pile of them.
Theres a few options for you.
Or like said above, try a private owned, non chain store type shop. They usually will sell you one. Although some have said th350's are hard to come by, I know where theres a pile of them.
Theres a few options for you.
