Parts for your 2005 Toyota Crown-Steering bushes

2005 Toyota Crown steering bushes — what they do, when to replace, and how to keep things tight

Based on technical documentation and catalogues for the 2005 Toyota Crown (S180 series: GRS18x/UZS18x), steering bushes are indeed used on this model. The Toyota Electronic Parts Catalog for S180 Crown lists steering gear (rack) mounting bushings under the 45516 group, and the factory Repair Manual steering section details fitting the rubber rack bushings and brackets to the front crossmember. Well-known aftermarket catalogues for AU/NZ also offer rack and control-arm bushes for the 2003–2008 Crown, which further confirms their presence on the vehicle.

On a 2005 Toyota Crown, steering bushes are the rubber (or polyurethane) mounts that locate the steering rack to the subframe and isolate vibration. They help keep the rack square and secure so the wheel input translates cleanly to the road wheels without unwanted flex. When they harden, crack, or squash out, steering can go a bit vague on-centre, there may be a light knock over sharp bumps, and turn-in can feel delayed. Because the Crown is often a higher-kilometre import in AU/NZ, original rubber can be well past its best.

As part of routine servicing, it’s smart to inspect the rack bushes at 40,000–60,000 km intervals (or every 2–3 years), and sooner if there’s oil contamination from a weeping engine or power steering line. Fresh, snug bushes restore precision, reduce shimmy on coarse-chip roads, and help keep the car tracking straight under braking.

Replacement is straightforward for a competent tech. The rack stays in the car: support the crossmember, remove the rack bracket bolts, slide out the old bushes, and press in new ones with the flats/orientation marks aligned as per the manual. Always torque the brackets with the rack centred and the vehicle safely supported. An alignment isn’t always mandatory if only rack bushes are changed, but it’s good practice—especially if any tie rod adjustment was disturbed or if control arm bushes are done at the same time.

Rubber vs polyurethane? Rubber (OE-style) keeps the plush Crown feel and isolates noise nicely. Polyurethane sharpens response and resists oil and heat better, which can be handy in Aussie summers or for spirited driving. Either way, quality matters—cheap bushes can squeak or compress quickly.

• Common signs they’re due: on-centre wander, clunk when rocking the wheel at parking speeds, and a “floaty” feel mid-corner.
• Good workshop add-ons: check column lower bush play, tie rod ends, and lower control arm rear bushes while you’re there.
• Pro tip: clean and de-grease the rack mounts before install so the new bushes seat and last.

Popular questions about 2005 Toyota Crown steering bushes

Do worn steering rack bushes cause tyre wear on a 2005 Crown?

They can contribute indirectly. Excess rack movement makes toe stability worse over bumps, which can scuff the tyres. More commonly, uneven wear points to tie rod ends or lower control arm bushes. If the steering feels loose and the tyres are feathering, check all three.

How long do Crown steering bushes typically last?

In AU/NZ conditions, factory rubber often lasts 120,000–180,000 km, but heat, age, and fluid leaks can shorten that. Polyurethane options can go longer with consistent feel, though they may transmit a touch more road texture into the cabin.

Do I need an alignment after replacing steering rack bushes?

If only the rack bushes are replaced and the tie rods aren’t disturbed, toe shouldn’t change. That said, an alignment check is inexpensive insurance, especially on a car that’s already showing uneven tyre wear or has just had other front-end work.