Is anyone here still running or familiar with the guards and sickle on the 820 series I.H. head? I am finally in the process of converting one of my older rigid Ford heads to run the 820 sickle and guards but everywhere I look for parts does not show this head using wear plates against the sickle,Is this right? I am using the 270 guard and it looks like the sickle actually runs against the guard and the guard itself is the wear plate.I am trying to get away from the old style Claas bar and pittman arm wobble setup and go to the I.H.-Hart carter style wobble box with a sickle and guards that can be bought easily aftermarket.The 270 guards are pretty much a bolt on for my head and the sickle uses a knife section that is pretty much spot on with the Claas.I have everything worked out except for the wear plates so someone that knows the 820 head please shoot me straight.