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4l80e build fail...

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Old 10-05-2013, 04:18 PM
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Seems that I was sold more wrong parts.... The smaller sprag element was to big for the base and caused it to spin both ways... This is the 3rd part wrong from un named company....
Old 10-05-2013, 08:23 PM
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Bummer.

What about your dual feed mod??? Did you modify the shaft and use the HD2 separator plate that comes in the kit???
Old 10-05-2013, 08:59 PM
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Originally Posted by 1FastBrick
Bummer.

What about your dual feed mod??? Did you modify the shaft and use the HD2 separator plate that comes in the kit???
I used a one piece transgo plate and modify what shaft? All i saw was leave off one ring on the center support leave off one o ring and plug the case hole.... I did not drill the valve body and use that little plunger mod.
Old 10-05-2013, 09:22 PM
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Originally Posted by Yukon04
I used a one piece transgo plate and modify what shaft? All i saw was leave off one ring on the center support leave off one o ring and plug the case hole.... I did not drill the valve body and use that little plunger mod.
I believe the center support has to be ground down in addition to leaving the ring off. I am not 100% sure it's necessary though.

https://www.performancetrucks.net/fo...t-drum-506779/
Old 10-05-2013, 09:31 PM
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We threw my center support in a lathe and removed that seal groove like Corey posted about in the above link.
Old 10-06-2013, 12:49 AM
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From what I gathered grinding down the center support is not necessary. But it would only help the fluid move into the direct drum however. I think it's more of one of those "couldn't hurt" kind of things. I did not grind mine down. But I might, it's not fully assembled yet.

Either way, I don't think this is his issue.

Last edited by Ferocity02; 10-06-2013 at 01:09 AM.
Old 10-06-2013, 12:58 AM
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Originally Posted by Yukon04
I used a one piece transgo plate and modify what shaft? All i saw was leave off one ring on the center support leave off one o ring and plug the case hole.... I did not drill the valve body and use that little plunger mod.
What o-ring did you leave off??
Old 10-10-2013, 05:01 AM
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Problem one was the smaller caged sprague was the wrong size I was sold one that caused clock wise and counter clock wise movement that's been fixed now I have reverse this is the second install.... BUT doesn't fix the fact that as soon as I go into gear when it gets moving it doesn't seem to shift the converter is locked and it will stall out the truck shudder and violently jump when braking so something else is clearly wrong I though it may be a issue with my speed sensors I had the newly wired sensor plugged in the rear and the oem sensor plugged in the front I switched them but have not tried again for fear of destroying what I have..... I guess I can try pulling the tcc wire and see if that helps.... Any ideas?
Old 10-10-2013, 09:37 AM
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It is the PCM commanding converter lock?
Old 10-10-2013, 10:26 AM
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I have no idea and really no way of knowing I'll pull the tc wire and see what happens


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