Below is the BMR adjustable PHB. Made from DOM tubing. The adjustable portion is made from heat treated chromolly steel. Adjustable portion goes on pass side. Adjustable portion is several inches in from the end. Pass side of PHB is attached to body of car. Drivers side of PHB attached to axle. Dead simple to crawl underneath... and tweak with 2 x wrenches, while ur helper tells u when it'd dead on.
Without the adj PHB, ur 285's will be sticking out 3/8" to 1/2" on driver's side.
https://www.bmrsuspension.com/?page=products&productid=172&superpro=0
Toss the oem 3 x sided stamped steel... upper PHB support.... it's junk.
Get the BMR HD DOM boxed version.
https://www.bmrsuspension.com/?page=products&productid=173&superpro=0