i ordered a set of 15 x 8 with a 4.50 b/s , greg weld dragster wheels when i did a test fit on the FRONT for an 81 malibu i found the depth of the center bore measures appro 2 1/4 " and the distance from the rotor to the bearing dust cover is 3 " without the center cap the rims fit flush but would not look good at all becuase the center cap has multiple screws holding it to the rim from the front bottom line is expect to run spacers and longer studs unless they make a deeper centercap just figure i would spread the word for a more informed decision