GMC Acadia Forum banner

radiator

  1. Towing & Hauling
    Here are some questions about adding towing 1. Would you just add the HD radiator or, leave the existing and add a transmission cooler? 2. Which radiator would you purchase - Ive been looking on RockAuto. They list two different Genuine GM parts 21818 and 84079536 . They both say HD. Not sure...
Top