Jump to content


New Member
  • Content Count

  • Joined

  • Last visited

Community Reputation

0 Neutral

About gerry

  • Rank
    New Member
  1. I have a 2021 Sierra 1500 SLT with the X31 package and Z71 off road suspension. It has 700 miles on it. The clunk is like many descriptions here, lateral over a speed bump at 3 mph and its clunk, clunk. It does sound like the spare tire is loose.... good analogy. Local dealer says leave it for a couple of days and they see if they can diagnose it. TSB 19-NA-129 is the requisite TSB for this. https://static.nhtsa.gov/odi/tsbs/2020/MC-10174269-9999.pdf
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.