Peterbilt 589 Cab Panel With 3/4" Under Light Holes by 12 Gauge Customs Upgrade a Peterbilt 589 with 12 Gauge Customs cab panels. Stainless steel, 3" wide, with hidden 3/4" under light holes for a sleek underglow. Order today! 3" Cab Panel With 3/4" Under Light Holes Fits Pe... See More