We broke a trans cooler last weekend. It was mounted between the subframe connector and the drive shaft. Under the the drivers seat. Fortunately this kept all the fluid between the frame rails. But fluid was even dripping off the deck lid and tail lights. When cleaning the underside I washed the wheels and took a look at the recently installed 5/8 studs. The picture is the spokes of the rear wheel at the hub next to the stud washer. Every spoke on both wheels is similar. Ran this car for close to 800 passes. Converted to 5/8" studs this Winter. Never guessed the old 1/2" studs were stronger than the wheels.
Doug