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  1. 6-Speed Automatic Transmission
    2017 Silverado 5.3 4x4 with 6L80, approx 109K miles. Two weeks a go I was reading how the transmission / torque converters crap out on these trucks between 100K and 120K miles. At that time I had no issues. Well all of the sudden.... Yup. Driving at 60 MPH and the RPM's are at 2500. So I...
  2. 6-Speed Automatic Transmission
    Hi, my name is Christo im new to the forum. I have strange sound between torque and motor only when my fluid is above 20 celsius. I put my short link on YouTube. I remove the cap under transmission and the sound seem to be there. Sorry for my english im french aha. Thanks you!
  3. 6-Speed Automatic Transmission
    Hi guys. I recently bought a 2012 GMC Sierra with 168K miles. It has a 6L80 transmission. Sometimes when I come to a stop, or am crawling in traffic or in a parking lot, the truck will shudder into first gear as it’s downshifting. I checked the fluid and it’s clean and at the right level and...
  4. Vortec 6000 6.0L V8
    This is my first post here so cut me some slack if anything less than perfect.. Anyway, I recently bought myself a 2013 Silverado 2500, gas 6.0, 4x4 & on the drive home taking the highway I noticed there is little shake/vibration while on the gas when going 40+. Nothing bad at all, just seems to...
  5. 6-Speed Automatic Transmission
    I'm losing the torque converter in the 2016 Silverado I bought a few months ago. Mostly noticeable on highway or uphill. I decided to pull the pan today and found it was full of metal shavings. I'm ordering a remanufactured transmission and torque convertor. They do not require I replace the...
  6. 6-Speed Automatic Transmission
    i try to shift into drive but the lever just moves freely. never had any problems with the tranny or anything severe with this truck. i have a 2009 Sierra 5.3 6 speed rwd. i tried looking for similar threads but couldn’t find much. i’d really appreciate it if someone could give their thoughts on...
  7. 6-Speed Automatic Transmission
    Hello everyone. I’m rebuilding the engine/transmission on my 2015 Silverado L83. this is my first engine pick and rebuild so I figured I would start here and join this amazing community and post some progress pics and any questions that I might have here. I really appreciate all of the help in...
  8. 6-Speed Automatic Transmission
    Long story short, I’m looking for a decent, complete rebuild kit for a 6l80 off of a 2014 sierra 1500. I have seen the McLeod 88189K kit, but from what the pictures look like, it doesn’t come with all the clutches (they only have one picture) and I was wondering if anyone knew of a decent...
  9. 6-Speed Automatic Transmission
    2017 Silverado LT 5.3 4X4 6speed transmission 51,000 miles Truth in advertising: I posted this at the gmtrucks site but only got a few responses then I saw all the 6L80 posts here, so here I am. When I first bought the truck the transmission suffered from severe bucking or shudder under light...
  10. ⚙️ Transmission - Transfer Case - Driveline
    I have a 2008 Silverado 1500 LT ext cab short bed 2wd. 5.3 out of a 09 avalanche 4x4, and the original 08 4l60e trans. The trans just went out 1-4th are all gone...I can go rebuilt brand new from a friend for $1000. Or go the 6l80 route. I have the harness, shifter and ecu from a 2012 with a 5.3...
  11. 6-Speed Automatic Transmission
    Hey guys! Somewhat new here. Just put a 6” lift on the daily 2011 Silverado and finally caved and bought HPTuners. I mainly purchased it to adjust the speedo/disable afm, but I’ve been doing some research into converter tuning and think it would be worth while considering how good everything...
  12. 6-Speed Automatic Transmission
    So i drove my wife 2015 silverado 4.3l 6l80e trans,84,000 miles and all of a sudden tack went to 0 and i put trans in neutral costed off hwy, shut off went to restart nothing but lights not even a click try to jump just click, but new battery in just a click very faint, did not have code reader...
  13. 6-Speed Automatic Transmission
    Sorry in advance for long post! I have a 2014 Silverado LT 4X4 with the 5.3 engine. It has had a 7 inch lift and 35" tires since 4k miles. Currently has 117k miles. About a year ago it started occasionally "jerking" hard when decelerating quickly. This worried me but it didn't happen very often...
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