In this article I will explain to you how each of the Toyota hubs works and what each one looks like. Hopefully this will help to end the confusion about the different types of Toyota hubs that have existed over the years. I will talk mostly about the troublesome AUTO hubs that some Toyota 4x4s came with between 1984 and 1989, and how to rid yourself of them if you choose to do so.
Toyota has always offered manual locking hubs on all of the Toyota has always used Aisin manual hubs. They are the best available hub on the market for your Toyota. Their quality and strength surpasses all aftermarket hubs. Unfortunately, their price also surpasses all aftermarket brands. Buying a 'new' pair of Aisin is out of the question. If you need to replace a hub visit a wreck yard and buy a used Aisin, or get a pair of new aftermarket hubs with a lifetime warranty.
With manual hubs, IF you have both hubs LOCKED, you will be able to shift into 4WD at any safe speed.
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