I run a F350 single rear wheel 4 door long bed 4x4 with rail boxes and front box. The tool boxes allow me to carry a chain saw climbing equipment bar oil etc in one box. Blades, belts, extra oil and a case of 2cyl oil with tools to fix anything within reason in the field. The front box has straps, chains, a come along and some specialty treatment chemicals in it. This truck typically has the dump trailer and sometimes my mower trailer behind it.
I also run a Chevy 2500 standard cab no frills just A/C and cruise control that serves as my mowing truck and pulls a 18' landscape trailer with 2 ZTRs a walk behind a push mower 2 string trimmers, 3 blowers and a stick edger. I've a shell on the back of it that i keep 4 5 gallon cans of gas in extra oils straps in blades belts etc.