Kraig, OH GREAT ONE, Keeper of the Photos - have you got a pic of a 1x6/7 where you can see that hole in the inside fender stiffener? I'm pretty certain the 107/127/147 have that hole supposedly to access and grease the hydro linkage. It may be the earlier Narrow Frame hydros that have the hole in the frame with a cover on it and when IH went to the later fender style they put the hole in the fender. I just can't remember for certain that it was to access and grease the linkage. I think IH never stopped putting the hole there when they continued with the basic style of these fenders for the wide frames and QL units.