Brake centering

[BRENT in 10-uh-C]

Originally Posted by BadBob

After further thought. I think Les' measurement is from the rivet head which is probably the difference.

Actually, in the PDF that I uploaded, it shows the measurement is taken from the lower portion of the hole. In my calculations, I show where that hole in the track is supposed to be 0.260", and so I factored in ½ of the hole's diameter and added to his specification. Then I compared Les' number to the Ford specification which is where I got the 0.055" discrepancy.

[nomadpsd]

Originally Posted by BRENT in 10-uh-C

Actually, in the PDF that I uploaded, it shows the measurement is taken from the lower portion of the hole. In my calculations, I show where that hole in the track is supposed to be 0.260", and so I factored in ½ of the hole's diameter and added to his specification. Then I compared Les' number to the Ford specification which is where I got the 0.055" discrepancy.

The 1-5/16" dimension in Les book is to the shoulder of the stud, which I believe is 3/8" diameter. 1.499 minus half of 3/8 (3/16 or .1875") is 1.3115", which is .001" less than 1-5/16".

[BRENT in 10-uh-C]

Originally Posted by nomadpsd

The 1-5/16" dimension in Les book is to the shoulder of the stud, which I believe is 3/8" diameter. 1.499 minus half of 3/8 (3/16 or .1875") is 1.3115", which is .001" less than 1-5/16".

I kinda see your point however two things, ...

The name of the A-2226/A-2037 part is called a 'Brake Shoe Retracting Spring Stud'. The instructions in Les' book states the measurement is taken from the Spring Stud/Rivet. Why even mention the word rivet if that is not what he meant to measure from, ...and why show the measurement to the edge of the hole instead of the stud?

Second, this has been an ongoing issue of confusion for years. That is why I made the PDF so people could understand what the correct dimension should be and where their error is when they follow his instructions. Other people have interpreted this measurement the same way as the OP did here. As mentioned above by Eric, even Ford did not allow the A-2017 to be a service item simply because it takes a fixture to align those where there were 4.622" from the centerline of the spindle to the top of the track glide surface. If you do not have a fixture that locates the tracks correctly, it is very easy to miss the measurement, -or even worse, rivet the track on at an angle and not parallel.