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Thank you for your interest in GMFullsize.com. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more!

Who are We?

GMFullsize.com was started by a group of enthusiasts that shared a common passion for GM Fullsize Forum. Over the years, the site has grown, and today has over 55,500 members. More importantly though, the users of the site have created over 5,700,000 posts of content all related to GM Fullsize Forum.

Who owns GMFullsize.com?

GMFullsize.com is now owned by VerticalScope Inc, the leader in online forums. With over 800 forum communities, VerticalScope provides the technology that powers the community. Our team of volunteer moderators and administrators watch over the content, and actively patrol for spam, user behavioural issues, and make sure threads are in the right categories.

Can I trust the information on GMFullsize.com?

The beauty of online forums is the information is peer-vetted. Our members have read the content, commented, replied, and helped maintain active conversations around the accuracy of the content you might be reading. In addition, our team of moderators and administrators are looking out for “fake news” and “shill posts” from unauthorized sources.

Who can I contact with questions or complaints? You can contact our Moderators and Administrators by starting a conversation. You are required to be logged in to do so. Optionally, you can contact a VerticalScope administrator on our Contact Us page, or by phone or email at:

VerticalScope Inc.
111 Peter St, Suite 901
Toronto, ON Canada
M5V 2H1
Phone: 416-341-8950

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