It is easy to install, just pull the upper and lower sieve, then crawl in there and bolt it in. In some cases you might have to drill a couple holes, but no big deal. We bought it specifically for wheat. We like to have an exceptionally clean sample because we store the grain all winter. Trash just helps get the bugs started. For years we were limited by the volume of the return. If we opened up the lower sieve, we got lots of chaff. If we closed it down, we plugged the return auger. By keeping the chaff suspended, we can do a better job and travel faster. I would say this is the best modification you can do for a wheat machine. Mike