904 Transmission Stopped Going Into Gear

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I only have the one thrust washer between the forward and direct drum. This is the washer we are talking about, correct?


The problem l see is that the direct drum is not engaging sufficiently into the sun gear shell when the output shaft thrust washer is installed.

I definitely agree that the direct drum was not engaging fully with the sun gear shell in my previous assembly attempt. But it looks to me like its going together correctly now.

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This is my trans.


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This is a reference picture from article on rebuilding a 1965 904 transmission from HotRod.com
Their direct drum engagement looks very similar to mine, am I missing something?

You still need at least .015 end play on a cold housing.

Could you elaborate a little on this? You're saying I need at least .015" of end play on the input shaft once the trans is fully assembled?

Shouldn't I be able to get any end play I want with the correct thickness shaft thrust washer? I have .074" of end play without any thrust washser. So can I just get a .060" thick thrust washer and end up at the required .015"?

I understand that the pump gasket will add a few thous of end play.