Dump mechanism?? Not sure what you're looking at but the M101 does not dump. It is designed for the tongue to "teepee" for transportation but it is not designed as a dump bed and will screw up the frame from trying to do so.I'd start by stripping offall the things you won't need to reduce the weight. I looks like it has a dump mechanism which you'll never need. Surge brakes are not great off road. Maybe convert to electric.