Re: brakes?
According to Scotty Baccus, he indicates that if you replace the Master Cylinder on a Squarebody to a Master Cylinder from a 2001Tahoe, you will dramatically improve the stopping performance. According to him, GM "upped" the brake fluid volume and lowered the Brake fluid pressure, thus giving a better pedal feel and eliminating the spongy feeling many complained about. Nothing needs to be done to the Disc brake pads/rotors.
But with this change, you will also need to change the reservoir for the Master Cylinder, as the Tahoe one will not fit under the hood of a Square.
He also indicates older Squares (like mine) probably could use a 81-87 Vacuum Booster, for peak performance, as these were improved as well, in the later years of the Squares.
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