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Old 11-26-2009, 06:32 PM
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Why does washer kit have plastic

Bought a thrust washer hit for the th350, has two plastic ones that to me seem useless. Thoughts?

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Old 11-27-2009, 04:45 AM
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Do you have something against plastic?

Lots of tranny thrust washers are plastic.
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Old 11-27-2009, 05:11 AM
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So I got the entire inners together all but the front pump and these were to be in there somewhere? I put a metal one everywhere it was logical to have a washer and I'm left with these. NO PLASTIC CAME OUT when disassembling
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Old 11-27-2009, 07:37 AM
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Quote:
Originally Posted by sooper
So I got the entire inners together all but the front pump and these were to be in there somewhere? I put a metal one everywhere it was logical to have a washer and I'm left with these. NO PLASTIC CAME OUT when disassembling
If none came out and you had enough to set proper end play, etc. w/o using the plastic ones, you should be OK, IMHO.

Much like a carb kit, it's easier to include a couple small parts that aren't used in every app, than to stock several more part numbers. Your tranny parts pack might be similar.
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Old 11-27-2009, 08:40 AM
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plastic vs. bronze

Hey Sooper, I've never rebuilt a th350 or any automatic transmission before so don't claim any knowledge here. But I do remember that light duty car transmissions use the nylon thrust washers and the heavy duty truck versions like my old chev 3/4 ton truck use bronze thrust washers and maybe different clutch pacs also. olnolan
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Old 11-27-2009, 10:46 AM
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Some th350's have a plastic and some have a torrington for the thrust bearing behind the pump.
There is definitely a thrust washer behind the pump.
Install the pump and check the endplay.
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Old 11-27-2009, 10:53 AM
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Quote:
Originally Posted by 123pugsy
Some th350's have a plastic and some have a torrington for the thrust bearing behind the pump.
There is definitely a thrust washer behind the pump.
Install the pump and check the endplay.
mine was bronze (or whatever that metal is)
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Old 11-27-2009, 10:59 AM
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Quote:
Originally Posted by sooper
So I got the entire inners together all but the front pump and these were to be in there somewhere? I put a metal one everywhere it was logical to have a washer and I'm left with these. NO PLASTIC CAME OUT when disassembling
normally with a th350 there are brass or pot metal type washers, or torrington bearings. i have seen a plastic washer below the sunshell that rides on top of the center support, but dont recall any other plastic washers for the 350.
make sure you check end play of the output shaft as well as the input shaft.the snap ring to the center support is basically the stop to check end play for the output shaft. it is just as critical as the front end play.
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Old 11-27-2009, 12:05 PM
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Quote:
Originally Posted by tnsmith10
check end play for the output shaft. it is just as critical as the front end play.
And look for _______________#?
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Old 11-27-2009, 01:50 PM
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Two washers were often plastic type of material... the washer next the drive shell as mentioned and the washer on top of the ring gear on the front planet.

use metal or plastic , what ever flips your skirt
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Old 11-27-2009, 03:04 PM
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Quote:
Originally Posted by sooper
And look for _______________#?
id say around .015-.030. i dont have a book handy, but that should be close enough, i just try to get where they barely have any play, but turn freely.
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Old 11-27-2009, 03:06 PM
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Quote:
Originally Posted by Crosley
Two washers were often plastic type of material... the washer next the drive shell as mentioned and the washer on top of the ring gear on the front planet.

use metal or plastic , what ever flips your skirt
i forgot all about that one.
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Old 11-27-2009, 05:27 PM
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Here's a pic of a copper/babbit? and torrington bearing type.

You can use shims pictured to take up too much end play.
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