I can't say anything about how the build for the 2021s were, but for 2022 I can. If you did not add the trailer tow package your at 7000lbs tow. You must add it for any of the packages including 402a. The reason if you chose 402a and the tow package is only $210, is because that package comes with all the other requirements (cameras, tow tech package, ETC) needed to increase tow capacity with the exception of the increased cooling and a few other goodies. Bottom line, standard, mid or high you must add the tow package to max your towing capacity.