Control arms and track bars: what a lift breaks
These are the parts a lift kit quietly makes necessary. Raise a truck and the factory control arms hold the axle at an angle they were never drawn for: caster goes out, the tire moves in the wheel well, and the ride develops a wander that no alignment will fix.
Upper control arms restore caster and buy back droop travel. A longer or adjustable track bar re-centers the axle under the truck, which is why a lifted solid-axle vehicle that pulls to one side usually needs one. Adjustable arms let you dial it in; fixed arms are set for a specific lift height and simpler to get right.
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Joints, bushings and alignment
The joint is where the money goes. A uniball articulates further and transmits more noise and vibration into the cab; a rubber bushing is quieter and binds sooner. Polyurethane sits between them and needs greasing. None of these is the right answer for every truck: a daily driver and a rock buggy want opposite ends of that scale.
Budget for an alignment afterwards, because that is the entire point of fitting them. We stock 263 control arm and track bar parts from 8 brands.