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Press Fit Bearings Press fit wheel bearings can give you fits because they are pressed into the knuckle, making them much more difficult to replace. You have two alternatives here: remove the knuckle and use a hydraulic ram to push the bearings out of the knuckle, or buy some special wheel bearing service tools that can do the job with the knuckle in place. The latter can be a real time saver because you don't have to pull the knuckle. A puller kit can cut the job to about 20 minutes per wheel, and, depending on the application, can also eliminate the risk of damaging the lower ball joint or tie rod end if these parts don't have to be disconnected. Applications that typically require removing the knuckle or using a wheel bearing puller kit include older Japanese cars, such as 1986-91 Toyota Camry, 1986-94 Toyota Celica, 1987-94 Toyota Corolla, 1992-94 Lexus ES300, 1985-94 Nissans, 1988-94 Mazdas and 1986-94 Honda and Acura. Others include 1973-94 Audis (except 100LS), 1985-88 Chevy Nova, most 1979-90 Chrysler FWD cars, 1995 Chrysler Neon, 1991-94 Saturns, 1975-94 VWs, plus various Ford FWD cars. Captured Rotor Wheel Bearings The hardest ones to replace are typically the captured rotor wheel bearings. Most captured rotor applications can be serviced without removing the steering knuckle, as long as you have the right tools. Be sure to inspect the race and rotor and ensure you've got proper access to the bearing itself. Pressed-in captured rotor bearings, especially the multi-piece designs used in some applications, will require a hydraulic press. These types of bearings can be found in some 1970s and 1980s Chrysler vehicles, including some 1981-89 Dodge, Chrysler and Plymouth vehicles, as well as various GM vehicles from 1985 to the early 1990s. You can identify these bearings by the way they sit inside the rotor: the wheel bearing is housed inside the rotor, which is bolted onto the hub assembly. This requires you to remove the rotor, then press the bearing out of the assembly. When servicing the captured rotor, be sure to press the bearing assembly in exactly as the original assembly came out. If it is not installed correctly, you risk damaging the bearing or warping the rotor.