New here but this is our newlt acquired 2011 GMC Sierra 2500HD SLT 6.0ltr. Our previous vehichle was a 2008 Chevy Silverado 1500 with the doomed 5.3 ltr motor. I went through 2 engine rebuilds and traded it in when the motor crapped the bed for the third time. We tow a 2011 Keystone Outback 230RS toy hauler.
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