* Bolt Pattern: The bolt pattern (number of lug nuts and their spacing) is almost certainly different between a Camaro and a GMC 1500. Camaros generally have a smaller bolt pattern designed for passenger car wheels, while the GMC 1500 has a larger bolt pattern designed for heavier truck wheels. This is the biggest hurdle.
* Wheel Offset: The offset (the distance between the wheel's mounting surface and its centerline) is different. A Camaro rim's offset is designed for its suspension and track width. A truck like the GMC 1500 requires a different offset. Using the wrong offset can cause rubbing against the suspension or body.
* Wheel Diameter and Width: The diameter (size) and width of the rims will likely be different. A Camaro uses smaller diameter wheels than a 1500 typically does. Using wheels that are too wide or narrow can also cause clearance issues.
* Hub Bore: The center hole of the wheel (hub bore) needs to match the hub size on your GMC 1500. If the bore is too small or too big, the wheel will not fit properly.
In short: You'd need to check the specifications (bolt pattern, offset, diameter, width, hub bore) of both the Camaro rims and your GMC 1500's wheels to determine compatibility. Even if some dimensions match, the offset is often a critical factor for proper fitment and safety. It's highly improbable they will fit without significant modification (and possibly compromising safety). It's best to stick with wheels specifically designed for your GMC 1500.
