Re: Brake centering tool
The tool is attached to the axle with the shoes mounted. You then turn the tool around as the disk sander sands the shoes to diameter. The shoes have to be centered as it is swinging around the axle.
The differential thickness is not much unless you put some way off hardware on the shoes. Besides, how many drive their car enough to wear out the shoes? Most cars are not driven enough to wear the brakes to the drums in less then a few years. This makes getting the center and diameter of the shoe even more important from the start. Otherwise you may take years to get full braking as the shoes wear to fit the drums.
It is a royal pain in the butt to make all the brake parts give you a centered fit to the accuracy you get with the Doktor tool. Short of getting all NOS brake parts the best brakes will come from properly using the Doktor.
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