Welcome to the Herd! Lots of friendly knowledgable folk in these forums.
Every 100kMiles\12Yrs to keep your ride happy:
* V6~4.0L~SOHC EnginPanDrop + New PanGasket To Clean OilScreen & Look For TimingGuide Brokens
* New OilPressurized TimingTensioners
* New IgnitionPlugs+Wires & OxSensors
* New Belt+BeltTensioner
* New CoolantHoses+Clamps+Radiator+Pump+HeaterControlValve+PlasticFittings
* New Aluminum ThermoStatHousing, Replace Plastic Version
* New FanPlasticBlade+FanClutch If Fitted
* New Bulbs For Dash
* ...
Every 33kMiles\4Yrs:
* New Coolant+ThermoStat+Rad\PressureCap+PCVValve
* Clean+Inspect MAFSensor & ThrottleBody+IACValve+IntakeManifold & EGRValve+DPFE+RiserTubes
* TransPanDrop + New Filter + New PanGasket + New 5~6qt MerconV.FullSyn + BandAdjust For 5r55e Trans
* New MerconLV.FullSyn For 1354 4x4TCase If Fitted
* New 75w140.FullSyn+Modifier For Diffs, Clean+Inspect Vents+Hoses
* New BrakePads & Inspect Rotors+Calipers
* ...
Every 5kMiles\6Mths:
* New Oil+Filter To Discourage V6~4.0L~SOHC TimingTensioners From Sludging+Failing
* HandPump 3/4qt From TransDipTube & MerconV.FullSyn Refresh
* HandPump 1/4qt From SteeringReservoir & MerconV.FullSyn Refresh
* HandPump BrakeReservoir & DOT4 Refresh
* ...