Anyone have the correct casting numbers for the caliper halves on a 1967 that were installed in production? Thanks.
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Re: '67 Caliper castings
Loren----
For 1967 it could be one of 2 sets of caliper castings. Very early 1967 may have used the 65-66 "1st design" calipers. These have casting numbers 5465952 and 5465954, front, and 5465902 and 5465905, rear.
Most 1967 used the "2nd design" calipers. These have casting numbers 5452270 and 5452273, front, and 5452281 and 5452284, rear.In Appreciation of John Hinckley -
Re: '67 Caliper castings
Loren----
For 1967 it could be one of 2 sets of caliper castings. Very early 1967 may have used the 65-66 "1st design" calipers. These have casting numbers 5465952 and 5465954, front, and 5465902 and 5465905, rear.
Most 1967 used the "2nd design" calipers. These have casting numbers 5452270 and 5452273, front, and 5452281 and 5452284, rear.In Appreciation of John HinckleyComment
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Re: '67 Caliper castings
My January built '67 has the #s Joe indicated.(The second set of #s)Comment
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Re: '67 Caliper castings
My January built '67 has the #s Joe indicated.(The second set of #s)Comment
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Re: '67 Caliper castings
FWIW,
My April '67 has the "2nd design" calipers numbers mentioned above.
I'm not sure if it's clear but the 2 numbers are inside, and outside numbers.
2270 & 2281 are the side where the hoses attach (inside).Comment
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Re: '67 Caliper castings
FWIW,
My April '67 has the "2nd design" calipers numbers mentioned above.
I'm not sure if it's clear but the 2 numbers are inside, and outside numbers.
2270 & 2281 are the side where the hoses attach (inside).Comment
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Re: '67 Caliper castings
David-----
The numbers that I provided are the CASTING numbers only. There were quite a few PART numbers which were made up from these castings. The part numbers are unique to each of the EIGHT caliper half positions EXCEPT the front OUTER. The front OUTERS are the same for either side.
The point that I'm making here is that you can't just go by CASTING number to determine the correct caliper half for any, particular, caliper-half position (except front outer).In Appreciation of John HinckleyComment
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Re: '67 Caliper castings
David-----
The numbers that I provided are the CASTING numbers only. There were quite a few PART numbers which were made up from these castings. The part numbers are unique to each of the EIGHT caliper half positions EXCEPT the front OUTER. The front OUTERS are the same for either side.
The point that I'm making here is that you can't just go by CASTING number to determine the correct caliper half for any, particular, caliper-half position (except front outer).In Appreciation of John HinckleyComment
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Re: '67 Caliper castings
Very interesting.
The numbers I referred to where CASTING numbers as well, in case there was some confusion.
BTW, I noticed some other markings when I checked my calipers that looked like they might be dates (e.g. "D3" - I can't remember exactly).
What do the part numbers look like, and where would you find them?
Are they on the calipers?
Can you see them without taking them apart, or off the car?
I can see where all 4 calipers definitly have a different shape, when both halves are assembled. No chance of putting them on in the wrong spot.Comment
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Re: '67 Caliper castings
Very interesting.
The numbers I referred to where CASTING numbers as well, in case there was some confusion.
BTW, I noticed some other markings when I checked my calipers that looked like they might be dates (e.g. "D3" - I can't remember exactly).
What do the part numbers look like, and where would you find them?
Are they on the calipers?
Can you see them without taking them apart, or off the car?
I can see where all 4 calipers definitly have a different shape, when both halves are assembled. No chance of putting them on in the wrong spot.Comment
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Re: '67 Caliper castings
David-----
I was aware that you were referring to casting numbers. Those are the only numbers that are found on the caliper halves. The part numbers for the caliper halves are not on the calipers, anywhere. I just wanted to be sure that folks understood that positioning the caliper halves is not as simple as the casting numbers might seem to make it.
The different part numbers for the caliper halves were a result of final machining and/or assembly of the caliper half castings. So, the same casting could have different configurations after machining.
The caliper half part numbers were on the boxes that SERVICE caliper halves were supplied in (when they were still available). That's the only place that the PART numbers could ever be found. However, by examining the caliper half and noting its casting number + machining features, one can infer the part number.
The "D3" that you mentioned refers to the old Danville, IL GM foundry where many brake parts were once-upon-a-time cast and the "3" refers to a mold or pattern number that the particular casting was made from. That foundry was closed about 10 years ago, so all of these parts are now "orphans".
You may also note a "wagon wheel" symbol on the castings which is the trademark for the GM Central Foundry Division. A "CFD" may also be present.In Appreciation of John HinckleyComment
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