How to Upgrade My Engine? May 3, 2005 19:01:12 GMT -5 Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by racerb on May 3, 2005 19:01:12 GMT -5 Hey go to www.rivergate5speed.com they sell a LSD called Phantom Grip for our cars, I've got one in my '87 GTS, works great.racerb ;D