I've got a 93 4WD 4Runner. It's gotten to the point where I can't stand the steering wheel shake during light braking. Since I have to replace the front pads anyways, I decided to replace the rotors as well. Since it's a locked front assembly is there anything special I need to do when I remove the rotors? I was thinking of replacing the hub with Asin manual hubs at the same time, but it not really important.
Also is there any special tools or large size socket I will need to remove the rotor?
The easiest way to get those hubs apart is by leaving the tire on the ground with the center of the wheel out so you can get at the eight cap nuts. First use a chisel to pop the center cap off and place it off to the side. Then loosen the 8 cap nuts several turns but do not remove them. Next thread two metric bolts, I think they are 10 mm, into the two threaded holes in the plate that the 8 cap nuts hold in place and tighten the two bolts just enough that they bottom out and start to push the round plate away from the hub. After you see a gap between the plate and the hub loosen the two bolts you just tightened. Now tap the round plate with a hammer lightly and the 8 tapered washers that secure the plate under the 8 cap bolts will loosen up. Now you can take the eight cap nuts all the way off, remove the 8 tapered washers and then the center drive shaft bolt with its large washer. The splined round plate can now be removed and set off to the side. Now you need to remove the wheel and also the brake caliper. Next you will need to bend one of the locking tabs on the washer below the large spindle nut. Once the tab is bent back you can loosen the spindle nut. The spindle nut may require a special socket that can be bought from the dealer rather inexpensively. It is just a bent piece of thin steel with a 1/2" drive socket plate welded to the end. Once you remove the spindle nut you can rock the rotor and hub slightly to pop the outer bearing out of the race and then you can slip it and the washers off the spindle. Make sure you pay attention to the order of the nut, locking washer, any other washers, and the bearing. Now you can slip the hub off the spindle and remove the bolts from the backside of the hub that secure the rotor in place. You will need an impact wrench to accomplish this most likely. Now reverse the process to reassemble. Make sure you use a high quality disc brake rated wheel bearing grease for the bearings and replace the back seal in the hubs after repacking the wheel bearings. Again, you may need a special thin walled socket to get the spindle nut loose but many times I have been able to do it with just very large needle nosed pliers. Tightening to the right spec is important as too little or too much will ruin your bearings eventually.
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