Pulls and installs front hub bearings with the steering knuckle still on the vehicle, so the strut stays put and no alignment is needed.
On most front wheel drive cars the hub bearing is pressed into the steering knuckle. The textbook repair is to unbolt the knuckle, haul it to a shop press, and then pay for an alignment because the camber and toe settings moved when the knuckle came off. This 25-piece adapter kit does the same job on the car. The forcing screw and the matched cup and driver adapters clamp around the knuckle so the old bearing is drawn out and the new one pressed in while the strut assembly and knuckle stay bolted in place. No press, and no alignment afterward.
The heart of the set is a 7/8 inch Grade 8 drive bolt. Bearing removal is where these kits die, because a soft or undersized forcing screw will stretch and gall the threads on a rusted bearing, and the tool is scrap. Astro rates this bolt at twice the durability of the industry standard screw. Grease the drive bolt threads before every pull and it will keep taking the load. All the pieces carry a black phosphate finish.
Coverage is broad rather than model specific. The manual included with the kit lists over 1,100 vehicle applications with the adapter combination to use for each one, so it works as a general shop set instead of a single-platform tool. That also makes it the right tool for transaxle work, where the hub bearing usually has to come out before you can get clean access to the axle shaft and the output seal.
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