I need to know what screw set I need to get for my Inferno I was told it is a 7.5 that was converted to a kanai 1 then to a Kanai 2 and the hexheads screw set I wanted to get for it comes as either a 7.5 set or kanai 2 set what are the main difference's between the two so I can tell for sure what I have? The screw difference is like 25 more for the k2 set, also what size screws do I need for the engine mount?