ok i have a 2006 gt and i was wonderin if we come stock with 31 spline or 28 spline? im not very familiar with rear ends and such but i recently bought some 4.10 gears and took my car to the shop when i get a call back saying they cannot put the gears in without breaking my limited slip differential and i was told i had a broke pin or something and he would literally have to take a hammer to it to get the pin out to get to the gears and doing so would break my lsd and that i would need an entire carrier if i want those gears installed. so i am wondering if we have 31 spline or 28 in the 2006 so i can buy the right lsd. also is there any recommendations for a good limited slip? thanks in advance!