I just bought the rear dump from the seat hopper style from bad boy outlaw. It is made by Humboldt for bad boy. It was expensive at $2200 but does a outstanding job. Believe me, flipping a toggle switch to dump the hopper is awesome compared to getting off every time.
09 Ford F-250 crew cab
8.5x20 Haulmark enclosed trailer
Bad Boy Outlaw
Echo trimmer, edger, and backpack blower
MTD yard man push mower