Post Early A-body wheel/tire combos here

Centerline satin Autodrag 3.5X15 with Michilin XYZ 165SR15's fronts and old satin 15X8 Chevy 2 Centerline Autodrags redrilled to 4 BC with custom centering rings. They are 4 7/8 backspaced so they are super close to the 8 3/4 rear spring. Im gonna need a 1/2 spacer as almost any tire sidewall bulge will hit the spring.. hoping to run a 70 series 255 wide oval tire back there for proper stance. BTW, who make a +1/2" longer 7/16 stud for the 8 3/4? part number?