Recent content by TubeTruck

  1. TubeTruck

    Rear gear pattern comments?

    I'm going to post mine up here also so we don't have a ton of threads with the same thing. I think this looks good, but this is my first time. Thoughts?
  2. TubeTruck

    Time for a rebuild..

    Well, just got my transmission rebuilt. Rebuilt the t-case. Put it all back together and it drives fine until I hit exactly 60mph. Then it starts vibrating like crazy. It sounds like something is loose in the t-case, and it actually moves the shifters around. At first I was thinking the forks...
  3. TubeTruck

    4l80e rebuild gone wrong...

    Got it back together and in. It's drivable. Something still doesn't feel quite right, but I'll live with it. If I get on the gas at any speed it hesitates a bit and occasionally feels like it's shifting up and down rapidly before it holds a gear. Some of it might be the engine from sitting for 4...
  4. TubeTruck

    4l80e rebuild gone wrong...

    Just getting back to be able to work on this thing, and I figured out what I did wrong in 2 seconds. I ordered a new forward drum and center support and laid them on the table next to my old ones. Today I come out and just for fun, spun the sprag on the bottom of the forward drum.. yeah, the...
  5. TubeTruck

    4l80e rebuild gone wrong...

    Pulled the trans apart. Couldn't see anything obvious other than my assumption. Something was staying engaged. Found that the direct clutches are smoked. What would keep them engaged? There's no nicks in the piston. Everything still felt good and spun fine when I was taking it apart. No sign...
  6. TubeTruck

    4l80e rebuild gone wrong...

    It came out of a 1998 Suburban with a 454. I took the transmission apart initially because of the output shaft, but it was ready to grenade. I cleaned it thoroughly and took apart/replaced everything to make sure all the bits were out. Here's what I found on my initial teardown.
  7. TubeTruck

    4l80e rebuild gone wrong...

    Np. Thanks. I could use all the help I can get at this point, lol. I'm thinking the first time I rebuilt the t-case I didn't get something right and it was barely in that lo/hi state. I didn't have a front driveshaft for the 3 years I was driving it so I wouldn't have noticed it. In the short...
  8. TubeTruck

    4l80e rebuild gone wrong...

    @NickTransmissions Ok, Quick update. I'll probably be pulling the transmission out this weekend. I took it for a very short ride. It shifts from 1st to 2nd at about 2500rpm, normal, when it gets into second it bogs down, like I said like the brake is on. I rode it out for a second though into...
  9. TubeTruck

    4l80e rebuild gone wrong...

    I'll put it back together tonight after I check that servo and with the new separator plate. The t-case stick is pulled back, so unless something changed in the t-case, it should be in high, but I will double check. I have a twin stick NP205 and ORD shift rails. I believe breaking the output...
  10. TubeTruck

    4l80e rebuild gone wrong...

    Yes, new sprag was purchased and installed. I remember checking to make sure they spun in one direction and in the correct direction. The spiral snap ring was installed correctly. I remember checking to make sure it was seated properly and fully. Air checked the T40 bolt. I can see the...
  11. TubeTruck

    4l80e rebuild gone wrong...

    It moves instantly. It won't shift into second until high rpm. I answered the questions in post #6, but probably got skipped over because they were in paragraph form. Here they are again: > Replace the boost valve with a Sonnax 4L80E-LB1 (I don't like Transgo's valves either for these or the...
  12. TubeTruck

    4l80e rebuild gone wrong...

    Bought a new factory separator plate since mine had some major check ball wear. Should be in tomorrow. Plugged the hole I drilled for the HD2 relief. Here's what's going on. Anything else I should check while the valve body is out? Put the truck in drive, first gear wouldn't shift until high...
  13. TubeTruck

    4l80e rebuild gone wrong...

    Did some digging. It had p0758 trouble code and another. It was limping. I cleared the codes and tried to take it for another drive. Now it surges in first till it shifts second, then it's like it brakes. If I take my foot off the gas it slows down fast, then barks the tires downshifting. Edit...
  14. TubeTruck

    4l80e rebuild gone wrong...

    Ok. I want you all to know I am a moron @Bextreme04 had it correct. It was the t-case. Or rather operator error. I had it in fwd with no front driveshaft. Swapped sticks and it lights the rear tires up. But now a new problem. It doesn't shift lol
  15. TubeTruck

    4l80e rebuild gone wrong...

    Prior to rebuilding. See post above
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