Parts for your 2007 Lexus Is-Ball joints

2007 Lexus IS ball joints — what they do and when to service them

Yes, ball joints are absolutely used on the 2007 Lexus IS range (IS250/IS350, chassis GSE20/21/22). Technical sources back this up: the Lexus/Toyota Repair Manual on Toyota TIS details Front Lower Ball Joint inspection and replacement, the Toyota Electronic Parts Catalogue (EPC) lists a serviceable front lower ball joint (group 43330), and the Lexus New Car Features (NCF) outlines the double wishbone front suspension and multi-link rear — layouts that rely on ball joints at the knuckles and control arms. On this model, the front lower ball joint is a replaceable unit, while the upper joint is integrated into the upper control arm. The rear suspension also uses ball-jointed links in key locations.

Think of the ball joint as a tough, greased pivot that lets the front wheels move up and down with the suspension while steering left and right. When they’re in good nick, the car tracks straight, steers crisply, and keeps tyre wear even. When they’re worn, it can wander, clunk over bumps, and chew out tyres.

As part of regular servicing on a 2007 Lexus IS, it’s smart to inspect ball joints every 20,000–30,000 km or annually, and any time there’s a steering or suspension complaint. A technician will check for dust boot tears, grease leaks, play with a lever/pry check, and feel for roughness or binding. If the front lower ball joint shows play or the boot is split, it should be replaced promptly — these are safety-critical parts.

• Tell-tale signs: clunks over bumps, vague steering, uneven tyre wear, or a shake under brakes.
• Replacement notes: use quality parts, torque to factory specs, fit a new cotter pin, and avoid hammering the knuckle. An alignment is required afterwards.
• Upper front joint: replace the complete upper control arm if any play is found.
• Rear links: inspect the rear knuckle ball joint(s) and link joints at the same time.

Many IS owners in Australia and New Zealand tie ball joint checks to major services or before a WOF/roadworthy. With good roads and careful driving, ball joints can last well past 150,000 km, but sealed boots and age are the wildcards. Catching wear early saves tyres, keeps the steering sharp, and, most importantly, keeps the car safe.

Popular questions

How long do ball joints typically last on a 2007 Lexus IS?
In local conditions, they often run 120,000–200,000 km, depending on road quality, driving style, and whether the boots stay sealed. Regular inspections during scheduled servicing help spot early wear before it affects tyres or safety.

What symptoms point to worn ball joints on an IS250/IS350?
Common signs include clunking over bumps, tramlining or wandering on the motorway, uneven front tyre wear, and a loose feel on initial steering input. Severe wear can cause knocking you can feel through the floor or a shudder under brakes.

Do you need a wheel alignment after replacing ball joints?
Yes. Any time a ball joint or control arm is changed, a full alignment should be done. It ensures correct camber, caster, and toe so the Lexus drives straight and protects those pricey tyres.