Parts for your 1999 Toyota Crown-Steering bushes

1999 Toyota Crown steering bushes — what they do and when to sort them

Yes, the 1999 Toyota Crown (S170 series, e.g., JZS171/GS171) uses steering bushes. Factory documentation — the Toyota Crown S170 Repair Manual (Steering section) and Toyota Electronic Parts Catalog (EPC) — shows a rack‑and‑pinion steering gear mounted to the front crossmember with rubber “cushions”/bushes. These bushes locate the steering rack and isolate road vibration, so they’re absolutely relevant on this model.

On a ’99 Crown, the steering bushes are the quiet achievers. They clamp the rack securely in place while soaking up the harsh stuff from bumps and rough chip. When the original rubber ages, swells from power steering fluid, or cracks from heat and kilometres, the rack can shift a touch under load. That’s when owners start noticing a light clunk on turn‑in, vague on‑centre feel, or the car tram‑tracking over ruts. Keeping the bushes healthy maintains crisp steering response, correct geometry, and a nice, refined ride the Crown is known for.

As part of routine servicing, it’s worth inspecting the rack mounts every 40,000–60,000 km, or any time there’s steering play. Look for splits, flattening, or softness, and check for power steering fluid leaks that can attack the rubber. A quick test: have a helper gently rock the steering wheel while watching the rack housing — visible movement against the crossmember usually points to tired bushes.

Replacement is straightforward for a competent tech. The rack is supported, the mounting bolts are removed, and the old bushes are swapped for new ones, taking care of orientation tabs and sleeves. Bolts are torqued to spec from the factory manual, ideally with the vehicle at normal ride height to avoid pre‑loading. A wheel alignment is smart afterwards, especially if the rack was shifted. Owners can choose genuine‑style rubber for OE comfort and NVH control, or quality polyurethane for a firmer, more direct feel, poly can add a hint more road texture but sharpens response — a common pick for those who want the Crown a bit more tied down without going harsh.

Ignoring flogged‑out steering bushes can accelerate tyre wear, fail a WOF/roadworthy, and leave the steering feeling loose. Fresh bushes bring back confidence — steady on‑centre, quieter over bumps, and more precise lane changes — exactly how a sorted Crown should drive.

• Typical symptoms: clunk on turn‑in, steering wander, uneven tyre wear, rack housing visibly shifting.
• Service tips: fix any fluid leaks first, use quality bushes, torque to spec, get an alignment.

How long do steering rack bushes last on a 1999 Crown?

In Aussie and Kiwi conditions, many see 100,000–200,000 km, but heat, rough roads, and any power steering fluid leaks can shorten that. If the car feels floaty on‑centre or knocks over driveway lips, it’s time for an inspection regardless of kilometres.

Can the bushes be changed without removing the rack?

Often yes. On most S170 Crowns the rack can be supported and the mounts undone to slip the bushes out, though clearance varies. Sometimes the sway bar or undertrays need to come off for access. Always protect the hydraulic lines and re‑torque to spec.

Rubber or polyurethane — which is better for a Crown?

Rubber keeps the factory smoothness and is ideal for daily use. Polyurethane tightens steering feel and lasts well, but can transmit a touch more road feel. For a comfy cruiser, go rubber, for a slightly sportier edge without going harsh, quality poly works a treat.