Corvettefaq.com

Installing Body Mounts
from corvetteforum.com member JerryM

There are 4 per side, #1 bolt is accessible from under car,aft of front wheel, one (#2) bolt is accessible from inside the car, you must pull kick panels under the dash. #3 is accessible form underneath by removing a 3"x4" cover plate in rear wheel well forward of wheel, and # 4 from rear wheel well underneath, aft of tire. Body can be raised by jacking under rocker panels on metal substructure, probably 2" would be enough, or you could block body and lower frame.