2014 GMC Sierra with 140k miles?

[Jerryk105]

Is it a bad choice to buy a 2014 with 140k for $17k a bad idea? If I do buy what mods should start first?

[taylormjones3]

I've got a '14 with the 5.3 and am about to roll over 210k miles. It had some of the common issues such as bad grounding near the dash causing steering issues at low speed, a bad weld on the condenser that had to be replaced, and both heated seats going out which isn't too hard of a fix. Other than that, mine has been bulletproof. 

I'd look for service records but would probably count on changing the transmission fluid and filter as well as the rear end fluid. Coming up on time to do a coolant flush.

The best mod I've done is add Apple Carplay/Android auto. There is one very good thread on this forum for sourcing parts one ebay. I made the upgrade a few years ago and it cost $300-400, maybe cheaper now with more parts being available.