Originally Posted by ANDYS87

Does anyone know the size/thread of the rear end cover bolts for a 99 GT? As stated in another post, I installed a Ford Performance rear end girdle last year. The bolts are already all rusty, and the car was in storage all winter. So, I want to replace the bolts with stainless ones. I just don't know what size/thread they are...without removing one and going to the store to match it up. It would be nice to know now incase I have to order.