I seen some say stock dampener is 6.65 and ATI list it as 6.78. Ati says the 20% over measures 7.88. If I do the math neither of those work out to what ATI says. Can someone shine some insight on this? I need the right measurement of the ATI OD dampener so I can buy right paxton pulley so I dont over spin Paxton too far. I know that shift point also comes into affect. I am waiting on tuner to get back to me so I can factor that in also. Thanks guys. I am just waiting on last few things for build :banana: