Anyone have a problem installing AC Pro peg nerfs with heel guards on there 05 Z400? The damn things just don't want to fit. I even managed to strip the treads on the right front motor mount where the nerf mounts too. Is it just me, or were they poorly designed. I'm not rteal comfortable with how close they mount to the oil lines, they practically touch them. Any help with adjustments or opinions on how they seem to function would be greatly appreciated. Thanks.