Dan
Guest
Does that 8070 have FWA and is it going to salvage. I have alternated narrow and wide rasp bars in the same row in an effort to use good narrow bars. If concave will be able to be set true to a mixed bag of bars it worked for me. I only use wide rasp for replacement. I have a picture of what makes the rumbleing in cage for it was still in there when we pulled rotor to replace wore out helical bars. It looked like a minature round bale that was the length of the seperator side of cage. Imagine the pressure on the cage each time a cylinder bar slipped over that bail and that is what you are feeling and hearing in the cab. Good luck in whatever you do. Dan