I've used a 6x6 Polaris to haul sap for about 12 years. I strap a 55 gallon drum into a cradle in the bed. It handles it just fine, although as lew said the steering can get a little dicey with all the weight. Back at the shack I use a sump pump to empty the tank.
Central Ohio
Leader WSE 2x6
Old metal corn crib converted to "The Shack"
Smoky Lake 6 gallon water jacket canner
Daryl 5" filter press with air pump
Deer Run 125 RO
2023: 140 taps, buckets, 32 gallons
2019: 100 taps, buckets, 45 gallons
2018: 100 taps, buckets, 31 gallons
2017: 100 taps, buckets, 15 gallons
2015: 100 taps, buckets, 34 gallons
2014: 100 taps, buckets, 30 gallons
2013: 100 taps, buckets, 52 gallons