Parts for your 1998 Toyota Crown-Coil springs

1998 Toyota Crown coil springs — fitment, purpose and service tips

Based on Toyota’s technical literature — including the Crown (S150, 1995–1999) New Car Features manual, the Toyota Electronic Parts Catalogue (JZS151/JZS155/GS151/LS151), and the chassis section of the factory Repair Manual — the 1998 Toyota Crown sedan is equipped with coil springs on most grades: double-wishbone front with coils and a rear live axle with multi-link and coils. Certain high-spec variants were available with electronically controlled air suspension (TEMS/air) that replaces the coil springs. So coil springs are relevant to the 1998 Crown unless the vehicle was optioned with factory air suspension.

For Crowns fitted with coils, the springs carry the vehicle’s weight, set ride height, and work with the dampers to soak up bumps so tyres stay planted. They also help the anti-roll (stabiliser) bars keep body roll tidy through corners. In daily Aussie and Kiwi conditions — corrugations, speed humps, and the odd farm track — good coils are a big part of that cushy yet controlled Crown ride.

Service-wise, coils don’t have a fixed replacement interval, but they should be inspected at each service (around every 10–15,000 km). Look for chipped coating, rust pitting, cracked or broken ends, and sagging ride height. If one spring fails, replacing springs in axle pairs keeps handling balanced. It’s smart to refresh related bits at the same time: upper and lower insulators, bump stops, dust boots, and (if they’re tired) the dampers.

Because compressed coil springs store a lot of energy, removal and refit should be done with a quality spring compressor and proper safety gear — a job many owners sensibly leave to a workshop. After any spring work, a wheel alignment is recommended to keep tyre wear even and steering feel spot-on. All fasteners for control arms and links should be torqued at normal ride height to avoid preloading bushes.

Choosing springs? Sticking to OE-equivalent rates preserves that smooth Crown character. Lowered or heavy-duty options can be fitted, but they should be matched with appropriate dampers, and any height change must comply with local Aussie state/territory or NZ regulations. For Crowns with factory air suspension, coil-specific advice won’t apply, those cars use air bellows and height sensors instead of steel coils.

• Common signs of coil trouble: one corner sitting low, repeated bottoming out, visible cracks or broken “pigtail” ends, or uneven stance after fuel/passenger load.
• Best practice: replace in pairs, inspect mounts and isolators, align afterwards, and keep an eye on tyre wear.

Popular questions

Does a 1998 Toyota Crown have coil springs or air suspension?
The majority of 1998 Crowns use steel coil springs front and rear. Some high-grade trims were factory-fitted with electronically controlled air suspension that replaces the coils. The build plate, VIN options, or a visual check for air lines and a compressor will confirm what’s on the car.

How often should coil springs be replaced on a 1998 Crown?
There’s no set kilometre limit. Coils are replaced when they’re cracked, corroded, sagged, or after impact damage. Regular inspection at service time is the go, many original springs last well over 200,000 km if the vehicle isn’t overloaded and the dampers are in good nick.

Can lowering springs be fitted legally in Australia or New Zealand?
Yes, but any change in ride height must comply with local regulations. Beyond modest drops, certification or engineering approval may be required. Matching springs with suitable dampers and getting a proper alignment will keep handling safe and predictable.