Van or utility body for service techs? Which is preferred and why? I am trying to decide between getting an extended wheel base Chevy or GMC 2500-3500 van or a utility body on a 2500 truck. The person using the van will mostly be doing service calls for irrigation, installing lighting, and maybe helping out on some of the larger installs that we do. Here is the catch, this person will also be installing water features...this is where I see the utility body having an advantage with its open bed.