This is a truck alternator bracket cut in half and i "machined" of about 3/4 of an inch off the back to have it line up with ls1 gto accessories. I had a 4.8 that i put ls1 gto water pump and crank pulley and power steering pump on.The gto setup for alternator wouldnt work in my regal with the motor mounts i used just wanted to show other people how i solved my problem at home cheaply im new to this forum so i dont know if i can post like this but im trying to figure out this site thanks Anthony