... Adapter 5 Lug 5.5" To 5 Lug 5.5" (Pair) 9/16" Studs 1)6061 T6 billet aluminum 2)Process ... for 5 lug 5.5" To 5 Lug 5.5" (Pair) . 2)CNC machined billet aluminum and thickness options are 1 ... ", 1.25", 1.5" ,2",2.25",2.5",3"3)These adapters can be ... Adapter 5 Lug 5.5" To 5 Lug 5.5" (Pair) 9/16" Studs