Backdraft, Superformance - Windshield channel will have to be drilled at top center to allow screws to fit into windshield channel. Do not drill too deep into the windshield glass; only 1/8" depth needed.
Lone Star - Longer +6" T-Top should be ordered. If windshield channel does not have a wider entry point at the top, the channel will have to be drilled at top center to allow screws to fit into windshield channel. Do not drill too deep into the windshield glass; only 1/8" depth needed.