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Hey guys. I posted in my build thread about the 4l80e I bought today. Apparently a 2005 model from a 2500hd. Excited to tear it down and get the rebuild going. If I install it in my 1990 K2500, which currently has its stock TH400, will I have any issues getting a standalone controller like...

Hey guys. Figured I would start a build thread for my truck. The current plan for Pearl is to travel with her. My wife and I just got married two weeks ago, and the goal is to travel for about a month or so next summer, with a slide-in truck camper in the bed. Pearl is a 1990 GMC K2500 C6P...

Went and took a look at a manual transmission today. Supposedly a 5-speed out of a 1990. Should I rush back there and pick this up because I had no idea what I was looking at? I will attach a photo of the ID tag from the side of the case. I can't find any info on whether or not this came in...

Hey everyone. Pearl is starting to act up lately! There seems to be a F***ton of trans issues/questions threads on this site. So I'll make mine short and sweet. '90 8-lug K2500. Odometer reads 146,XXX. 5.7/TH400/floor-shift-TC(NP241?). 14-Bolt semi-float, 3.73, G80-optioned. I think that covers...

Hey everyone. My names Mike Taylor. I drive a 1990 GMC K2500 C6P, we call the Black Pearl. Original, I'm sure lol. I've learned a lot from this site and I wanted to join up and stick around a while, and maybe see if you folks can help keep Pearl on the road. 😁 Her TH400 is currently acting up a...