Toyota 4Runner Steering Knuckles, Spindles & Parts

Both knuckle and spindle are the parts of the steering system that can be found in almost any vehicle these days. There is, however, a fundamental difference between the two. The spindle is provided with a fixed rod mounting and bearings without allowing the wheels to receive torque and thus limiting its application to the rear-wheel drive vehicles. By contrast, knuckles feature a hole locating a drive shaft and providing its reliable connection to the drive wheels; therefore, these components can be installed in front- and four-wheel drive vehicles.

While being positioned as a rough off-roader with an old-school body-on-frame chassis, the Toyota 4Runner has always been renowned for its ruggedness and utility. The 4Runner’s lineup has offered 4x4 driveline architecture across all of its model variations and trim levels, which means that sooner or later you will have to deal with the knuckles in your SUV. All steering system parts have to be durable and reliable. However, corrosion, which is often accelerated by dirt and salt (if you park your 4Runner on a beach or drive on winter roads), has become a common issue. If you are looking for high-quality, affordable parts, browse our Toyota 4Runner steering knuckles, spindles & components catalog.