upgrade exhaust to 2.5 or 3 inch. Better tires- but not just mud lugs- handle like crap on pavement and the hum will be BAD.Do a complete check on all moving parts- grease and lube.Put together a GOOD offroad rescue bag- fluids(for you and truck)lights, straps, an Actual Tow strap/rope or chain. a come-along or mount a winch.And do not forget some general tools.If you are going to get into DEEP water or mud look into a Fording kit for air cleaner and a exhaust extension to prevent water ingestion.Exterior lights are a must if going out in the dark, as the hole or rock you DON"T see can put you in a bad place quick.