I installed a 2 1/2" x 10" 275 lbs spring on a QA1 shock for Mike's B&B last summer. Shock, QA1 part # 7564. but I don't remember the lenght.
Fender height was 27 1/4 or 27 3/4".
this was the same set up that has been on this car for nine years, I just replaced the shocks and kept the old springs.
Dwight
picture is with the rear end hanging
