Ride Along: 2020 GMC Sierra 2500HD AT4 Four-Door

September 16th, 2019 by

Ride along with John Ambrozic from Smail GMC as he gives an in-depth look at the new 2020 GMC Sierra 2500HD AT4

This heavy duty truck boasts a DuraMax 6.6L Turbo-Diesel V8 engine paired with a new 10-speed transmission.

Posted in Sierra