Duh,the 2sp stands for 2 speed.I have a 22t 2sp,couldnt I use that up front side or back side,why the 2sp designation,if it can go front or rear.I have that on front right now.Still not getting it 100%,but the list you gave me is 100% right out the box ,correct???Are the different pulleys other than stock only supposed be used with a oneway?To make overdrive??