HomeAll RepliesRe: Medium Duty/Commercial Re: Medium Duty/Commercial Sponsored March 27, 2012 at 3:29 pm #39415 LexParticipant Yes hopefully GM medium duty will be available soon. If there will be 4500 Silverado, hopefully there will be option for SFA 4×4 and high end trim with a bed. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored