Support

Support and feedback

A question about the site or the 4wd.ai app in ChatGPT, something that didn’t work, or an idea: write to support@4wd.ai. We read every message.

Write to us

The button opens your email app with the subject and message filled in, addressed to support@4wd.ai. Nothing is sent from this page and nothing you type here is stored.

About the ChatGPT app

The app compares two tire sizes and, when you name your vehicle, lists its factory sizes. If a result looks wrong, tell us the two sizes and the vehicle you asked about. Please don’t send personal details we don’t need.

What the app receives and keeps: the ChatGPT app in our privacy policy.

A wrong number?

If a figure on a page doesn’t match the maker’s document, report it here: that page says what to send so we can check it against our copy.