1969GTS, are you certain your backspacing is 5 1/2" and not 5 1/4"? I believe they advertise their standard 15X7's with a 4 1/4" b.s. so the extra inch should make it 5 1/4" if you want to run the factory trim ring and it appears you have the factory trim rings. Please let me know since I want to order a set like yours. What did they charge you for the extra custom offset? Thanks