Boxster rims..., Almost on.. Options

[Andyrew]

So been at work with the rear suspension.. Put some shims in the rear trailing arms and got the rear tires to fit (the inside was the problem amazingly..) 255-40-17's.

Now the fronts are 205-50-17's. and I figured heck, they'll bolt on like no trouble at all...

Well they stick in like a soar thumb.. and they are like bolted against the shock dirt cover.. Sooooo gona put a 1/2 in spacer in it.

Problem is... My rear super long studs arent made for the 3/4 in spacer that I currently have on both sides (like 7 threads on...) and the fronts have no big studs what so ever.. Soooo Im moving the rear studs to the front and getting longer studs on the rear...

There is about 2 in of stud sticking out for the rear studs, and im guessing a 1/4 in for the rotor and another 1/4 in for the hub.. (I think)... Does anyone know how big it is actually if it sticks out 2 inches?

Im thinking of getting a set of 72mm studs for the rear... Is that going to be enough??

Thanks

Andrew