Be aware that you can not use the stock 15" wheels with the CPP 6 lug conversion as the inside web of the wheel will not clear the calipers. Several other aftermarket sources sell the same kit. They also need the bearing conversion as stated above. I used the 5 lug (Camaro/Malibu) conversion and re-drilled the rear axles. I also installed aftermarket wheels and had the caps modified to fit. More options with newer wheels. No problems after 10 years of daily use.
Fred