[airdale94]

The x-member is not necessary, the lowers are disc brake exclusive (turn stops for the disc brake spindle) the uppers are basically the same, neither will put your caster in spec. boostedc10 is right you just need to shim the front. I can't imagine why they diddn't know this the machine after you do your measurements will tell you exactly what shims to remove and add in what places. I'd take it back to them. You should be able to get at least an inch of shims, if needed on that control arm.