Jesus Christ mate, 75mm!!! It must be flat to the boards, haha. Third party spring manufacturers like King springs, for instance, offer 2 kits, low (32mm) and superlow (50mm), they don't offer ultra low 75mm springs for a reason, they mess up the front and rear geometry of the car way too much for the standard linkages and other attachements to compensate. Listen to all the mofos who are telling you your pinion angle is out of whack. I did my car 32mm and it bottoms out way more than I thought it would. I'm glad I never got superlows at 50mm. I'd have no sump or lower cross-member left!!! lol As it is I dinged the bottom of the sump taking a drive on the winery roads in the upper hunter around Cessnock