It's unlikely that Dodge Neon rims will fit a Chevy Cavalier without modification. While both cars are compact and from a similar era, bolt patterns (the number of lug nuts and their spacing) and center bore (the hole in the center of the rim that fits over the hub) are crucial for proper fitment, and they are almost certainly different between the two models. Even if the bolt patterns *happened* to be the same (which is improbable), the offset (the distance between the wheel mounting surface and the centerline of the wheel) and overall diameter are likely different, leading to clearance issues with the suspension, brakes, or fenders.
You absolutely must verify the bolt pattern, center bore, and offset of both the Dodge Neon rims and your Chevy Cavalier's hubs before attempting to install them. Trying to force mismatched wheels onto your car is dangerous and could cause damage to your vehicle or lead to a loss of control while driving.
