Quote:
Originally Posted by Juergen
Ford never quoted a figure in their manuals and it was suspiciously absent. In several early Ford manuals (like the 1941-1948 Ford Service manuals), the car specs were blank while some trucks had limits. In the 1949 - 1951 passenger car shop manual, with the arrival of Bendix brakes, Ford specified .060. The late Dick Spadaro offered this advice; use .060 for Bendix brakes and .090 for Lockheed brakes.
Now you will get a lot of people claiming state rules are at .060 but I have never seen any barner back up this claim with written evidence of a law. I had an aluminum GM brake drum that had .090 as the maximum diameter.
|
That may have been the drums from an 12" Buick... They STARTED at 12.030, and would be at 12.090 when at max size. This is pretty much a unique situation. Old VWs are another.
On a drum that's got grooves that go deep, I may machine out to .060, leaving some raw grooves... Doesn't seem to make a difference.
Karl