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Hi guys, I'm looking at adding a shift kit / improvement kit to my 5R55S, only I have no idea what I should get. I found the 5R55S "Shift Reprogramming Kit" from Transgo linked below and thought maybe this would be a good thing to get (link below). My question is, since the transmission is...

I know some people have replaced their solenoid packs only to continue experiencing shifting issues so I thought I'd take a shot here and see if anyone has a known working pack they'd be willing to sell. I am like many others who am unsure if the solenoid pack is the problem or not. Let me know...

Hey guys, new to the forum but have been reading here and there in this forum for years. I've been driving my 2007 Sport Trac since 2010, I got it with 57Kmi on it. Now I've got 124Kmi on it, engine is 4.0L and lovely 5r55s trans. Yesterday while driving home I took a turn, applied the gas...