So the idler wheel on my 2012 Pantera has developed a vibration/buzzing and I'm suspecting a shim issue. I already pressed it and moved the idler checking for any play to try and eliminate a bearing problem (hoping its not the bearings). I got a shim kit from Martin and will be doing the work tonight. Does anyone have some input on this whole process or about the problem itself? I am very mechanically inclined by trade but nonetheless this is my first attempt at this. Thanks for any help.