
Allison Automatics in Chevrolet Silverado’s new 4500HD/5500HD/6500HD medium-duty trucks will be paired with the reliable Duramax diesel engine – a legendary combination that has powered nearly two million trucks.
Allison Automatics in Chevrolet Silverado’s new 4500HD/5500HD/6500HD medium-duty trucks will be paired with the reliable Duramax diesel engine – a legendary combination that has powered nearly two million trucks.