Reply to "What are the Pros & Cons of Magnesium vs Aluminum Wheels"

Switching wheel studs is a weekend job, assuming you have the correct tools, parts and equipment. You also need to know how to do it! You should be able to find all the info you need here. If you aren't comfortable doing it yourself, have a Pantera vendor do it. Don't trust your local mechanic. The stub axle needs to be pressed out of the upright, to access the studs. Make sure you know the length (minimum and maximum) of studs you need and that the GT-5 studs do indeed fall within that range. While you have the uprights "out" and apart, I'd do all of the usual maintenance we Pantera owners do when our uprights are apart. Replace the bearings (GTS mod?), turn or replace the rotors, check axles for signs of wear, etc., etc.