THE GENERAL RULE FOR TRACK TECH OF WHEEL STUDS IS THAT NO MATTER WHAT WHEEL YOU USE THE STUD MUST REACH INTO THE WRENCH PART OF THE LUG NUT THE DISTANCE OF THE STUD DIAMETER, FOR EXAMPLE;
IF YOU HAVE A 1/2" STUD THEN THE STUD MUST COME THROUGH THE WRENCH PART OF THE LUG NUT 1/2"
DEPENDING ON WHAT WHEEL YOU USE THAT WILL DETERMINE WHICH STUD YOU NEED. YOU CAN USE A 3" LONG STUD AND IT WILL WORK WITH ANY WHEEL BUT IF YOU USE A THIN CENTER WHEEL EXAMPLE; ALLUMISTAR, THEN YOU CAN GET AWAY WITH A 2" LONG WHEEL STUD. HOPE THIS HELPS