created by the Great Lakes Chevys or something like that. This "how to" instructions made all the rounds during the early internet days. I had made multiple readings of the instructions during that time. Ten or so years later the memory of that tech sheet is still in my recollections, however I only have a vague recollection of those instructions. I have search the internet to no avail. The Great Lakes Brake Upgrade Instructions and Parts list is no where to be found. To make matters worse, I have this nagging memory that one the tech sheet’s steps had you drilling a new clevis hole in the brake swing pedal arm. Why was the step done in the Great Lakes’s Tech Sheet and not in my latest research?
I am happy now! I now know if you have a tilted up booster/master cylinder you should
make a new clevis hole to increase the travel length of the pushrod. If you have a non-tilted booster/master cylinder the hole may not be required.
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+"Tech Quicks: Don't Forget the Hole!" Chevy Classics Oct. 2007: p.79