Parts for your 2010 Toyota Mark x-Steering bushes

2010 Toyota Mark X Steering Bushes

Steering bushes are relevant and used on the 2010 Toyota Mark X (GRX130 series). Toyota’s service literature for the GRX130 steering system specifies a rack-and-pinion assembly mounted to the front crossmember via rubber cushions/bushes, and the Toyota Electronic Parts Catalogue lists these as serviceable “cushion/bush, steering gear” components. Independent technical catalogues for the platform likewise note replaceable steering rack mounting bushes across both hydraulic and electric-assist configurations. That means the 2010 Mark X does, in fact, run steering bushes, and keeping them in good shape is key to tidy, quiet steering.

On this Mark X, the steering bushes locate the rack precisely while isolating vibration and road harshness from the cabin. When they harden, crack or oval out, the rack can shift under load, which shows up as a loose on‑centre feel, clunks on sharp bumps, or a steering wheel that wanders on cambered roads. Because these bushes are the primary interface between the rack and the crossmember, their condition directly affects steering accuracy and tyre wear.

• Common signs they’re tired:
  • Knock or clunk through the column on turn‑in or over potholes
  • Vague or delayed response off centre, especially on the motorway
  • Uneven or accelerated front tyre wear despite correct pressures
  • Visible cracking or oil‑soaked rubber at the rack mounts

As part of routine servicing, a visual check under the bonnet and from underneath for perished or displaced bushes is worthwhile every 20,000 km or annually. If replacement is needed, it’s good practice to do the full set so the rack sits square. The job involves supporting the rack, removing the clamp brackets and old bushes, cleaning the bores, then pressing in new items and reinstalling the clamps. Fasteners should be tightened to the factory torque with the vehicle at normal ride height. A wheel alignment afterwards is recommended to ensure the steering is centred and toe is spot on.

Owners can choose between genuine‑style rubber (best for OEM comfort and noise) or quality polyurethane (firmer feel and sharper response, with a touch more road feel). Either way, fresh bushes restore the Mark X’s tidy steering feel and keep NVH nicely controlled for daily driving around Aotearoa and Australia.

FAQs

Does the 2010 Mark X use hydraulic or electric power steering, and does that change the bushes?
The GRX130 platform was offered with both hydraulic and electric‑assist rack‑and‑pinion across markets and trims. In either case, the rack mounts to the crossmember with rubber bushes performing the same job—locating the rack and isolating vibration. The presence of EPS doesn’t delete the need for rack mounting bushes.

How often should steering rack bushes be replaced on a 2010 Mark X?
There’s no fixed interval, condition‑based replacement is the go. With regular checks at service time, many see 100,000–200,000 km, but heat, age, fluid contamination, and rough roads can shorten that. Replace when there’s play, cracking, or steering knock.

Is a wheel alignment required after replacing steering bushes?
Yes, it’s strongly recommended. Even if tie‑rods aren’t disturbed, centring the wheel and verifying toe ensures the Mark X tracks straight and preserves tyres after the rack has been re‑secured on fresh bushes.