I have a pair of Pennys Slicks, 10" wide 28" tall mounted and screwed on REAL (not copy)Ansen Rims with inner tubes inside . Back spacing on rims are 3". These were used on a 1968 Camaro with a 12 bolt rear so that should help you with the stud spacing. These will clean up nice and have been sitting for quite some time. This is a GREAT DEAL for someone wanting to display or show their ride with old school Rears. No they are not dry rotted and the tubes hold air well, 600.00 plus the ride