The magneride cars have the same hub/knuckle as the GT350 as noted above. I also did the same as
@o-man, but went with the ARP studs from Summit
ARP-100-7733, FP lug nuts
FMS-M-1012-N and a cheap spacer made from something like this off ebay
http://rover.ebay.com/rover/1/711-5...0001&campid=5338634152&icep_item=191156083019
You spend $35, pound out the studs and have a hubcentric lightweight spacer. Surprised more don't do the same, but I have a shoestring racing budget, so I re-engineer all I can.
I think the non Mag cars have 3 bolts holding the hub to the knuckle so you can therefore rotate the hub to knock out a stud without removing the hub itself. With the GT350/MR hubs, this isn't an option. They must be removed to get the stud out. Don't forget a little blue locite when reinstalling and if memory serves me, one bolt is impossible to torque... you'll have make your best guess on that one.