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  1. Maaac1789

    4L80E problems

    Update: I finally found the solution on HP Tuners forum. Because the Dakota Digital VSS reads off the speedo cable instead of the trans shaft, we had to change a few settings under the speedo tab in the tune, so it could properly calculate the correct speed. Shifts like a champ now. Don’t let...
  2. Maaac1789

    4L80E problems

    *speed
  3. Maaac1789

    4L80E problems

    As you know the 4l80 had 2 Soren sensors. The input is in the tranny, but on a 4x4 trans, the back sensor would run off the stock t case, but mine didn’t have that one so I decided to use the DD unit.
  4. Maaac1789

    4L80E problems

    Yes,I repinned the wires at the ECM. I’m using the Dakota Digital pass through VSS the speedo cable on the transfer case passes through the VSS. Model number SEN-4160, if I remember right.
  5. Maaac1789

    4L80E problems

    I actually bought a 4L80 harness and cut the wires I needed from it, since I had removed the tranny wires when I first did the swap. I’m using the stick NP 208 t case and using an adapter that came behind a 4L80. Bolt holes line up the same even though the 208 is passenger drop. It didn’t effect...
  6. Maaac1789

    4L80E problems

    Hey guys. Need some help. Long story short: I have a 1983 K10 that I 5.3 swapped last year. I initially used the 700r4 behind it, but it didn’t hold up. I swapped in a freshly rebuilt 4L80E, and had my programmer do a segment swap with HP Tuners, but we can get it to shift on its own. He can...
  7. Maaac1789

    Tranny swap question

    Ok, back on topic. I am wondering how to work the TCC brake function.
  8. Maaac1789

    Tranny swap question

    Then, after I did it, I watched a video on how to PROPERLY do it. Haha
  9. Maaac1789

    Tranny swap question

    So I tore down the donor np208 I got from the scrapyard, and retrieved the input shaft.
  10. Maaac1789

    Tranny swap question

    That's including the 4L80E!
  11. Maaac1789

    Tranny swap question

    So, I got the 700R4 out, and got another harness from a 6.0/4L80E to replace the wiring I cut out of mine, got the correct spacer for tranny/t case, and a flat 6.0 flexplate with spacer. Total spent so far: $550.
  12. Maaac1789

    Tranny swap question

    My last post was an attempt to get the thread back on track. I assure you, my original question had NOTHING to do with the bearded guy. Haha
  13. Maaac1789

    Tranny swap question

    I finally got around to going back to the junkyard today. They guys had found my spacer and were removing it when I got there. Just love those guys. We thought they had a flat flexplate, but they had already been scavenged. I also ordered a short shift shaft so I can utilize my current shift...
  14. Maaac1789

    Tranny swap question

    It's way out in the woods. It is a squarebody gold mine! Great guy owns it too.
  15. Maaac1789

    Tranny swap question

    My junkyard guys have 4 truckbeds full of t cases down on the woods. I looked through them for a bit yesterday, but was limited on time. The 2 young guys who work there have take extreme interest in my build and they are bloodhounds. They will find what I need. This yard has probably 40 or so...
  16. Maaac1789

    Tranny swap question

    Does yours work on a 4L80?
  17. Maaac1789

    Tranny swap question

    That's like the one that hits my pan
  18. Maaac1789

    Tranny swap question

    There is either more than one style, or that is some other spacer, because I'm seeing one online where the bolt holes are directly underneath the spacer. That's the kind I need
  19. Maaac1789

    Tranny swap question

    Where the bolt holes for the tranny mount are on the bottom. They are offset toward the tranny a bit and interfere with the pan.
  20. Maaac1789

    Tranny swap question

    Would the cast pan not take up the same space as the steel pan? the pass through I have is Dakota Digital
  21. Maaac1789

    Tranny swap question

    The pass through vss has been working fine for the 5.3. I'm hoping it will be ok for the 4L80. Time will tell
  22. Maaac1789

    Tranny swap question

    So, I went to my honey hole junkyard today and picked up a tranny to t-case spacer, and the remainder of a 208 transfer case with the correct 32 spline input shaft (which I had gotten the tail housing off of last year); total cost: $30! Then, I went to my programmers shop and picked up a...
  23. Maaac1789

    Tranny swap question

    Please define "minor machining". Lol

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