Can a tech look at this chart please

Mike, that 8 1/4" rear will fit your car, no doubt. You will need to have your driveshaft shortened a little, but the perch and flange dimensions are the same for 7 1/4", 8 1/4" and 8 3/4". Go for it, although then you know you will need LBP front disc's to have the same bolt pattern. And there goes those sweet SBP rallyes!!! Good luck with the switchover!!! Geof