1967 axle width

Old July 6th, 2019, 10:30 AM
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1967 axle width

Does anybody know the Width Between Wheel Mounting Surfaces 0n a 1967 cutlass supreme convertible rear end
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Old July 6th, 2019, 10:59 AM
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The 68-72 rear ends are an inch wider than the earlier cars if I remember right. They also have springs that bolt in instead sitting on spring mounts. Look for a 70-72 rear, pretty common and easy to find, and easily upgraded
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Old July 6th, 2019, 03:51 PM
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Rather than resurrecting an unrelated thread from five years ago, I've moved your question to it's own thread.

Be aware that the Type O axle was factory installed in the 1967 cars. The part number for the 1967 housing is exactly the same as the one for the 1968 housing, so the width is the same also. If your car has an 8.2 axle, it will be narrower. The actual width depends on which one you have.
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Old July 6th, 2019, 04:31 PM
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Originally Posted by joe_padavano View Post
Rather than resurrecting an unrelated thread from five years ago, I've moved your question to it's own thread.

Be aware that the Type O axle was factory installed in the 1967 cars. The part number for the 1967 housing is exactly the same as the one for the 1968 housing, so the width is the same also. If your car has an 8.2 axle, it will be narrower. The actual width depends on which one you have.
The 66/67 P axle is the same width as the O Type 66-70 & 71/72 8.5 Corporate axles.. The 28 spline P axle shafts interchange with the 28 spline O type axle shafts with sealed bearings. A little tidbit,this is not true with the 12 bolt Chevy rear axles. The 66/67 are narrower that the 68-72 units. All Olds A-Body rear axles are the same width 66-72.
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Old July 6th, 2019, 04:58 PM
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The 65 66 67 chevelle 12 bolt C Clip axles are 54 1/4" wide flange to flange
O axles and 68 to 72 chevelle 55 1/4"
At least that is what my tape measure read a few minutes ago
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Old July 7th, 2019, 03:25 AM
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61" wheel mounting surface to wheel mounting surface. 60" was the early 64 65 era.
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Old July 7th, 2019, 06:24 AM
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thanks did they make a posi carrier for a 12 bolt 1967 cutlass supreme convertible rear end
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Old July 7th, 2019, 06:26 AM
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Originally Posted by fixxur View Post
thanks did they make a posi carrier for a 12 bolt 1967 cutlass supreme convertible rear end
Again, are you talking about a Chevy 12 bolt or a Type O, which is NOT a "12 bolt", despite the number of bolts on the cover. The Type O anti-spin units are available, but are not easy to get.
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Old July 7th, 2019, 06:40 AM
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sorry for not knowing what a type o is, but probably is because gasket didn't fit exactly perfect so i have type o i guess

Last edited by fixxur; July 7th, 2019 at 06:42 AM. Reason: more to say
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Old July 7th, 2019, 06:54 AM
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Originally Posted by fixxur View Post
sorry for not knowing what a type o is, but probably is because gasket didn't fit exactly perfect so i have type o i guess
The Type O is the Oldsmobile-unique axle used from mid-1966 through the 1970 model year. It shares virtually nothing with any other GM rear axle. It has 12 bolts on the cover but only ten bolts holding the 8.5" ring gear to the carrier. Parts for these are few and far between. If you buy parts for a "12 bolt" GM axle, you will get parts for a Chevy axle that do not fit the Type O.
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Old July 7th, 2019, 04:28 PM
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picture

You can post a picture and will ID it for you.
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Old July 8th, 2019, 06:32 AM
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Also yes there is posi carriers for the Type O 12 bolt cover rear end. Supercarsunlimited.com lists them on their web site and Greg there is a wealth of knowledge on these also.

Hope this helps
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