The bore is the size of the center of the cylinder & the piston. The larger the cylinder the more brakeing power to the wheel but you will have more pedal travel.The book should list the correct one for that model. Use the one listed for the 65 if every thing else is the same. smile


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum