Do All Four Wheels Have Tie Rods?

No. Front wheels almost always have tie rods — every rack-and-pinion or recirculating-ball steering system uses them to turn the front wheels.

How Much Are Sway Bar Links?

A single sway bar link typically runs $15–$45 for a standard replacement-grade part, and $50–$100+ for a performance or adjustable link.

Do Sway Bar Links Need to Be Replaced in Pairs?

No — replacing sway bar links in pairs isn’t a strict mechanical requirement, but it’s widely recommended for practical reasons: both links see the same mileage and road conditions, so if one has failed, the other is usually not far behind.