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Mgmack

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About Mgmack

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  1. Is that a Denali grill on your AT4?
  2. What size wheel/tire are you running and what type of front bumper is that?
  3. Sierra AT4 has the auto down/up on both front windows. Auto down only on both rear windows
  4. No mods yet, but some Fuel 20x9 rims are in my near future.
  5. I had the same issue with my 17 Denali. I sold it to get the new 19 AT4 with 10 speed. No issues so far after 1700 miles.
  6. I also had a 2017 Denali 1500 4x4 with 6.2 and 8 speed that would vibrate under light throttle at various speeds. It felt like driving over rumble strips. After two visits to the dealer they flushed the tranny three times on the first visit and replaced the torque converter on the second visit. I still had the issue, so I sold it and got a 2019 AT4 with the 6.2 and 10 speed. No issues with the new truck and NO vibrations after 1700 miles. I’m hoping the GM engineers fixed the issue with the redesign of the T1xx.
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