I need some help urgently, i recently raced my car at Calder park raceway, on the start line i brought my revs up and dumped the clutch, it made a couple of crunches but the car was still accelerating so i kept my foot into it, not knowing that i had just smashed the rear diff caseing in about 10 peices, just wondering if any other GTR owners have had a similar problem and if so how to fix it. We have had the car up on a hoist but we are still scratching our heads on why it has done this, no the car isnt to low its only 1-2 inches lower than standard. it has nismo shocks (non adjustable) AND whiteline springs, any help would be great. cheers