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Chevrolet P20 Suspension Control Arm Cross Shafts

Chevrolet P20 Suspension control arm cross shafts

Starting at low prices, AutoBuffy stocks multiple suspension control arm cross shafts from top OE-quality brands for the Chevrolet P20. The cross shaft is the threaded pivot bolt that anchors the control arm to the subframe, allowing the arm to rotate through suspension travel. When it wears or corrodes, it causes loose, unpredictable handling and accelerates bushing and bearing failure.

Signs your Chevrolet P20 needs a new suspension control arm cross shaft

  • Clunking or knocking noise from the front suspension over bumps or during turns, caused by the worn shaft rocking inside its bore
  • Vague or wandering steering that worsens on rough roads, because the control arm pivot point has excessive play
  • Uneven or rapid tire wear, particularly on the inner or outer edges, indicating the control arm is no longer holding proper alignment geometry
  • Vibration felt through the steering wheel or floorboard at low to moderate speeds that is not explained by wheel balance
  • Visible corrosion, pitting, or deformation on the shaft when inspected, common in road-salt regions and high-mileage vehicles
  • Failed wheel alignment that cannot be corrected to spec, because the worn shaft allows the control arm to shift position under load

Which suspension control arm cross shaft should you buy for your Chevrolet P20?

The main decisions are material grade, whether the shaft comes with hardware and bushings, and whether you need the front or rear position cross shaft for your specific control arm. OEM-spec replacements prioritize fitment accuracy, while heavy-duty options use thicker or harder steel for vehicles subjected to towing, off-road use, or harsh winter environments.

OEM-Spec Replacement
Best for
Daily drivers needing exact-fit restoration
What you get
Factory dimensions and thread pitch, designed to restore original handling feel with minimal modification
Heavy-Duty / Upgraded Steel
Best for
Trucks, SUVs, towing applications, off-road use
What you get
Thicker cross-section or harder alloy steel resists bending and corrosion longer than stock under high stress
Kit with Bushings and Hardware
Best for
High-mileage vehicles where surrounding components are also worn
What you get
Cross shaft plus new bushings, washers, and nuts in one box — saves a second trip and ensures mating parts are fresh
Position-Specific (Front Lower / Upper)
Best for
Vehicles with separate upper and lower control arms
What you get
Shaft sized and shaped for that exact arm location; using the wrong position can cause misalignment or installation failure

Replacing the suspension control arm cross shaft on a Chevrolet P20

Moderate⏱ 1.5–3 hoursFloor jack and jack standsBreaker bar or impact wrenchSocket and wrench set (metric and standard)Bushing press or C-clamp for bushing removalTorque wrench for final fastener tightening

Support the vehicle safely on jack stands, remove the wheel, and loosen the cross shaft nut while the control arm is still under light load to prevent spinning. With the arm unloaded, drive out the old shaft, press out worn bushings if replacing them, then install the new shaft and snug the fastener with the suspension at ride height before final torque. Always schedule a wheel alignment immediately after completing the repair.

Frequently asked questions

How much does it cost to replace suspension control arm cross shafts on a Chevrolet P20?
Parts start at low prices for the Chevrolet P20 at AutoBuffy. Total cost depends on whether you replace one shaft or both sides and whether you also replace bushings. Professional labor typically adds one to two hours of shop time on top of parts cost, so doing it yourself saves the most money.
Can I drive my Chevrolet P20 with a worn or damaged control arm cross shaft?
You should not drive on a confirmed bad cross shaft for more than necessary. A worn shaft lets the control arm shift position under braking and cornering loads, which degrades steering precision and can cause sudden handling changes. It also accelerates bushing wear, turning a simple shaft replacement into a more expensive repair.
Do I need to replace the cross shaft on both sides of my Chevrolet P20 at the same time?
It is not always required, but replacing both sides is recommended if mileage or corrosion is high. Cross shafts on the same axle age at similar rates, and doing both sides while the suspension is disassembled saves labor time and prevents the opposite side from failing shortly after.
Does replacing the control arm cross shaft on a Chevrolet P20 require a wheel alignment afterward?
Yes. The cross shaft directly sets the pivot axis of the control arm, so disturbing it changes caster and camber geometry. A four-wheel alignment should always be performed after replacing a control arm cross shaft to restore proper tire contact, prevent premature tire wear, and ensure the vehicle tracks straight.
How do I know if the cross shaft is bad versus the control arm bushings on my Chevrolet P20?
Inspect both during any suspension service. A bad bushing typically shows cracked, collapsed, or extruded rubber around the shaft. A bad shaft shows surface corrosion, pitting, out-of-round wear, or damaged threads. Both can produce similar clunking symptoms, and often both need replacement together on high-mileage vehicles.
How long do suspension control arm cross shafts typically last on a Chevrolet P20?
Service life varies widely depending on climate, road conditions, and maintenance. In dry climates, a cross shaft may last the life of the vehicle. In regions with heavy road salt use or frequent off-road driving, corrosion and wear can shorten that significantly. Inspecting the shaft at every suspension service interval helps catch problems early.

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Suspension control arm cross shafts for other Chevrolet models

Chevrolet G30Chevrolet G20Chevrolet P30Chevrolet P10Chevrolet G10