The 0411 swap is well worth it in my opinion. It takes about an hour to do, both PCM connectors use the same style pins, so you just pull one pin and put in the new connector, over and over again...

I am pretty sure you can just use the water pump and fan clutch etc. from the trucks without any other mods required. They did start running electric fans in the 2005 and later models though, so get...

I did a similar swap about a year ago using a 91 c3500 as the donor into a 85 c10.

Document everything. go to Home Depot and buy a set of wire number stickers (Electricians use them for labeling...

You can control the 4l80e with a 4l60e tune using some relays and some pin changes. I was looking to do it myself and ended up going with HPtuners and did the segment swap.

Some people have...

Thank you for the heads up about TP RTV5. I was able to go through and get the files imported and loaded up.

You keep mentioning the 160 baud. I'm not following as I thought pin E was for 160...

Since I am new to this and all of my own vehicles are obd2. I was trying to minimize the investment. I would be willing to try other options, but if I can do it cheaper and just as well, then it is...

Thank you. I had found that thread, but I just wanted to make sure.

I was under the impression that the aldl used pin E for the 160 baud and pin M for the 8192 baud, but this truck only has pin...

SO it seems I am messing with one of the rarer ECM's. I have been trying to get my friends suburban up and running and really want to see the data that the computer is using. I made a cable to use...

I finally got into that yesterday, He did in fact have the old style plug and the new transmission had the updated one. Thank you Nasty-Z for the wiring diagram. Everything bolted up without a...

I have no real information to help, but wanted to say I like the project concept. Would like to see pictures, and Good luck

I gather that, but it doesn't mean it isn't causing a restriction. If you run raw fuel through a cat, it will clog up really quick. There are other things that can clog it as well. There could also...

Just throwing this out there, is it possible that the catalytic converter is blocked up? maybe something else causing a restriction?

He finally got back to me, and he does in fact have the 4l80. Thank you for helping

I was hoping that might be the case, I haven't seen the truck in about 3 years (He was a previous boss and I work somewhere else now) I asked him to send me some pics of the tranny pan and get the...

A friend of mine has a 91 or so C3500 with the 454 and a TBI setup running what he told me was a 700-R4. The transmission was supposedly rebuilt by a company that had done a Tranny flush improperly....

Hey everyone

I have been lurking around here for several months and have picked up a bunch of information. Thank you all for that. It's helpful to learn answers to questions you didn't even know...