My 02 flhtc with 72k miles makes a lot of clicking noise which sounds like it's coming from the front rocker area. I've already replaced the lifters and the noise prevails. I now have the rocker assy off and see no play in the bushings, however, .010 side play. Could this side play be causing this noise? And would it be beneficial to shim out the play while I have this apart. And where can I get the shims?