Cooling system, "the time bomb." Radiator end tanks, expansion tank, water-pump impeller and thermostat housing are plastic and fail between 80k and 150k miles. At 201k this truck should be on its second cooling system. A flush does nothing to stop a brittle expansion tank from splitting. $800 – $1,800 independent if it hasn't been done.
Rear subframe cracking. Bushings deteriorate and the subframe cracks around the differential mount. Structural, not comfort. $1,500 – $2,250 at a specialist; up to $4,000 – $5,000 if the floor pan is involved. Lift inspection required.
Continues: control-arm bushings, valve-cover and oil-filter-housing gaskets, VANOS seals, transfer-case actuator, NHTSA recall check, PPI priorities, seller questions, negotiation script, nearby shops, Tank alternatives.