Parts for your 2005 Toyota Ist-Steering bushes

2005 Toyota ist steering bushes — purpose, fitment and service tips

Referencing technical sources, steering bushes are used on the 2005 Toyota ist. The model runs a rack-and-pinion steering gear (shared with the Scion xA platform NCP60/NCP61) mounted to the front subframe through rubber bushings. This is documented in Toyota’s Technical Information System (TIS) repair manual for the 2005 Scion xA/ist platform, the Toyota Electronic Parts Catalogue (EPC) listings for NCP60/NCP61 that include “Bushing, Steering Rack,” and independent service guides such as the Haynes Scion xA/xB manual. These sources confirm the presence of replaceable rack-mount bushes and a column support bush arrangement.

On the 2005 Toyota ist, steering bushes act as the quiet achievers. They cushion and locate the steering rack, keeping the pinion aligned while soaking up vibration and harshness from Aussie and Kiwi roads. Good bushes mean crisp on‑centre feel, precise turn‑in, and less kickback through the wheel. Because the ist uses electric power steering assistance but still relies on a conventional rack, those rubber mounts are essential to keep everything pointed straight.

Over time, heat, oil contamination and big potholes can soften or crack the rubber. That’s when drivers start noticing a vague, floaty feel or a dull clunk over bumps. Under the bonnet, a tech might spot the rack shifting slightly when the wheel’s rocked side to side.

• Typical signs they’re tired: audible knock over sharp edges, imprecise steering, tramlining or wander, uneven front tyre wear, and visible perishing of the rack mounts.
• Quick check: with the engine off and wheels chocked, have a helper nudge the wheel while watching the rack brackets, any rack movement relative to the subframe is a giveaway.

Replacement is straight‑forward for a workshop: support the rack, undo the mounting brackets, press out the old bushes and press in new ones, then torque the brackets to spec. It’s smart to schedule an alignment afterwards, as any rack disturbance can nudge toe settings. For daily use, quality OEM‑style rubber bushes keep NVH civilised. Polyurethane options can sharpen response and resist oil, though they may add a touch more road feel, a fair trade for keen drivers.

Service tip: inspect at every major service (around 40,000–60,000 km), especially if the car sees rough chip‑seal or speed bumps. Keep power steering components dry—oil leaks accelerate bush deterioration. If replacing one side for wear, do the set so the rack remains evenly supported.

Popular questions

Do 2005 Toyota ist models actually have steering rack bushes?
Yes. Toyota TIS repair procedures and the Toyota EPC for the NCP60/NCP61 platform list the rack‑and‑pinion mounted via rubber bushes. Aftermarket catalogues also supply direct‑fit rack bushing kits for the platform shared with the Scion xA.

How long do the bushes last, and what are the tell‑tale signs?
Many will cruise past 100,000 km, but life depends on road conditions and leaks. Look for clunks over potholes, vague steering, or visible cracking in the mounts. If in doubt, get a steering/suspension inspection and align it after any replacement.

Rubber or polyurethane—what’s best for local roads?
For most Aussie and Kiwi commuting, fresh OEM‑style rubber keeps noise and vibration low. Poly bushes can sharpen response and resist oil better—handy if the car is driven briskly—but expect a bit more road feel through the wheel.