Installation of a fifth wheel and the Six-Month Rule

Selecting and installing a towing system involves more than matching a hitch to a trailer. This article explains how gross combination weight rating (GCWR), gross vehicle weight rating (GVWR), towing capacity, and hitch...

Vehicle air conditioning systems require proper refrigerant handling during upfitting and service operations. This article outlines important EPA requirements, technician certification expectations, and best practices...

Determining whether a vehicle is classified as a truck or tractor for Federal Excise Tax (FET) purposes isn't always straightforward. This article reviews key IRS considerations, explains why vehicle design matters, and...