We have had some issues when combining beans and the chaff, etc. hanging up on the rear axle. It gets around the rubber flap that hangs behind it. Anyway, it is worn out, several holes wore through now, and they sell a kit that makes it more like the 2388/2588 where there is more rubber and they are bolted together. Anyone done this, will it work? After our chaff builds up, it falls off in big bunches and doesn't scatter out when we chisel-plow or strip-till. Thanks!