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Discussion Starter #1
Ok so I have an 03 f250 with the 7.3 in it and the auto 4r100 trans. I had the transmission rebuilt a few months ago and a billet triple disk torque converter installed. The truck is bone stock otherwise. Since I've got it back the truck shifts weird into overdrive. Right before the truck shifts into overdrive the tc unlocks and the truck lunges into od and the tc locks up. This is under normal driving conditions. If you are into the throttle more it shifts fine (quick solid shift, tc stays locked)
 

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Discussion Starter #3
No because I never want them to touch it again. They had my truck for 2 months for a simple trans rebuild. And they put parts on it other than transmission related that I never authorized...it was a huge nightmare so I'm trying to figure this out on my own
 
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