Parts for your 2008 Toyota Mark x-Steering bushes

2008 Toyota Mark X steering-bushes

Steering-bushes are absolutely relevant on the 2008 Toyota Mark X (GRX120). Toyota’s workshop literature for the GRX120/121 series specifies a rack-and-pinion steering gear mounted to the front subframe through cushion bushings, and the Toyota Electronic Parts Catalogue identifies these as “bush, steering rack” within the Steering Gear & Link assembly. Independent parts catalogues for the Mark X also list replacement rack-mount bushes and column support bushes, confirming they’re a normal service item on this platform.

On this vehicle, the steering-bushes sit between the steering rack housing and the front crossmember. Their job is to locate the rack firmly while isolating vibration and road shock, keeping the wheel alignment steady and the on-centre feel tidy. When the rubber ages, swells from oil contamination, or splits, the rack can shift under load. That shows up as a clunk over bumps, vague or delayed response off-centre, tramlining, or a light knock when rocking the steering wheel at a standstill.

As part of routine servicing, a quick visual and pry-bar check of the steering-bushes is a smart move, especially around 120,000–200,000 km or if the car sees rough roads. If there’s excessive rack movement, perished rubber, or oil-soaked bushes from a power steering or engine leak, replacement is due. Many GRX120 racks use two main bushes (often one round and one D-shaped). Replacement typically involves supporting the rack, removing the mounting bolts and brackets, swapping the bushes, then torquing everything to spec. It’s good practice to get a wheel alignment afterwards, as tightening loads can subtly shift the rack’s position.

Owners can choose genuine-style rubber bushes for factory refinement, or polyurethane for a slightly crisper steering feel. Poly can sharpen response but may transmit a touch more road texture. Either way, keeping leaks under control and avoiding solvent exposure helps the new bushes last longer.

• Common symptoms: clunk over bumps, wandering or tramlining, vague on‑centre feel, steering shudder under braking.
• Service tips: inspect at each major service, replace in pairs, torque to spec, and book an alignment.

Do all 2008 Mark X models have steering-bushes?

Yes. The GRX120 Mark X uses rack-and-pinion steering with isolating bushes at the rack mounts. This layout is documented in Toyota’s GRX120 repair manual (Steering – Rack and Pinion) and shown in the Toyota EPC under Steering Gear & Link.

When should the steering-bushes be replaced?

There’s no fixed interval, but many need attention somewhere between 120,000 and 200,000 km, sooner if exposed to leaks or rough roads. If there’s play, cracking, or the steering feels loose or knocks, they’re due. An alignment after replacement is recommended.

Rubber or polyurethane bushes for a Mark X?

Rubber keeps the factory comfort and is ideal for daily driving. Polyurethane can sharpen response and reduce rack shift under load, which enthusiasts like, but it can add a bit more road feel in the cabin. Either style works well when installed correctly.