Sorry-I must have missed this thread. I'm not sure which line lock kit you are installing, so it's hard to give an answer I'm really comfortable with. I installed the SLP setup, it went between the rear line on the master cylinder and the upper line on the proportioning valve...Here is a picture...Bullitt#829 said:What lines do I use for the line lock install? Obviously the one that go to the front. Do I do the ones after the abs unit or the one before the abs unit? There is 4 holes on the line lock, which ones are inlet and which ones are outlet?