Hello, new member first post. I’ve spec’d out a 2021 duramax LT but before I pull the trigger I’d like to know if there are any ‘must haves’ or ‘Must avoids’. I was a diesel mechanic in the military long ago, looking for a Good resource for general issues or complaints with this platform...

Hi, I recently did a delete/tune to my Colorado diesel 2017 Z71 at 33,000 miles and replaced all the stock exhaust for a SS turboback 3 inch exhaust. If anybody interested in any original part or sensor (s) please send me an email . Everything is for sale. I can share more information...

I know this is probably a long shot. But is there anyway to tune and deleting in 2021. Around 46,000 miles I got a warning for 65 top speed after so many miles. Took it to the dealer, they said the def system needs replace.

Hey guys new to the forum so I apologize if this has been discussed. I just traded my tacoma in for a chevy colorado zr2, the truck has approx 46700 miles and I have noticed a weird clicking/tapping sound at idle. The sound is coming from the driver side front wheel well and can be heard easily...

Thought I'd share my build to maybe help others with decisions about lifting it. I have a 2021 sand dune colorado zr2. I installed a 4" BDS lift and managed to put 35x12.5 r 17 under it. Rims are -18 offset with 4.65 backspacing.