recently purchased rat rod 40 chevy pu with 8 lug 6 1/4 inch bolt pattern on rear end. it has adapters mounted to use 8 lug wheels with 6 1/2 inch bolt pattern. I have been unable to identify this rear end . I want to get new wheels and not use the adapters. so I don't really have to know what rear end...just need to find 6 1/4 bolt pattern wheels with 8 lugs. any help greatly appreciated.