Hi, glad to join in. I sure hope I can get some good insight from y'all. I've been the happy owner of a '67 GT350 since early January of '70. Over the years I've had to use different components that were not OEM to keep it as a driver, different distributor, carbs, little things that are been easy enough to replace with OEM parts now, but the thing that's really causing some heartburn is finding the correct Kelsey-Hayes calipers. The ones I found and have been using are smaller than my originals but have worked OK. Is there a manufacturer that offers rebuilt heavy duty Kelsey-Hayes 4 piston calipers or a cross reference of other applications that would work. Thanks for any input!
Gee, we're like brother-in-laws. I bought my GT 350 in January of 1971. Great cars no? Anyway, define what you are talking about as "smaller" with the calipers. The only diference in the 65/66/67 Kelsey Hayes caliper is in the port where the brake hose threads in. The 65/66 ones are different. Is this the problem? If so, get some correct 67 calipers.
Hey Roddster, I should have been more detailed in my description so here goes, they bolt on with no mods and the orginal brake hoses fit. The issue is that the rebuilt calipers are physically smaller than the orginal set, when compared to each other, by about 1/4 inch in length and about 1/16 in thickness also, although the mounting bolt holes are the same, there is more metal there in that the orginal ones have a triangular ear instead of a rounded one. The slot that the rotor goes though is also narrower. I'm thinking the orginal ones were "heavy duty" 'cause the rear drum cylinders are both larger in length and diameter than the replacement Mustang V8. That's a little more detail anyway. And yes, my GT350 has been a blast! All through high school, college, marriage and kids until they got too big, now it's a weekend driver.
I'll suggest that whenever you replaced the calipers, you turned in the original ones for some "factory rebuilt ones". See if those rebuild ones have the Kelsey Hayes markings on them. If not, the one you got, although industry acceptable, are ones possibly made from newer castings
