When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Ok thanks. I’ve got a June car and it has the 12 Bolt Type O
correct and original to the car..that’s why I was wondering how late they were made.I’ve only seen a few with the 12 bolt
I also have a '67, 4th week of June, 4-4-2 (5V) car with 12-bolt exterior type O built at the Framington plant.
i have a 66 442 4 speed Michigan built car , it also has the type O
I originally thought it was swapped in at one point but I got the Canadian docs for it and it’s right.
but the vast majority I’ve come across had the 8.2 and 3:55’s with the 2 or 4 pinion.
I believe the O Type was available for the entire 67 model run. As Joe said the O type was introduced during the 66 model run. The 66 8.2 were 2 pin posi and the 67 were 4 pin. I did have a very late 66 7E built posi that had a 4 pin posi unit. It looked untouched but some say it wasn't until 67.
I believe the O Type was available for the entire 67 model run. As Joe said the O type was introduced during the 66 model run. The 66 8.2 were 2 pin posi and the 67 were 4 pin. I did have a very late 66 7E built posi that had a 4 pin posi unit. It looked untouched but some say it wasn't until 67.
if it was available the entire year, what dictated it got put in instead of the 8.2”?
ive seen more 67 442’s with the 8.2” than the type O
And those were single pin diffs.
Last edited by CANADIANOLDS; November 24th, 2021 at 06:23 PM.
if it was available the entire year, what dictated it got put in instead of the 8.2”?
ive seen more 67 442’s with the 8.2” than the type O
And those were single pin diffs.
The O type was mostly found in non performance cars. As a fact the O Type was not available in a W-30 because they broke in testing. That was probably the determining factor in which car got which axle. All of the 67 P type posi axles I have seen were 4 pin units.
Last edited by 66-3X2 442; November 24th, 2021 at 06:30 PM.
The O type was mostly found in non performance cars. As a fact the O Type was not available in a W-30 because they broke in testing. That was probably the determining factor in which car got which axle. All of the 67 P type posi axles I have seen were 4 pin units.
Really? Yet they went with the O type in 68 onwards including the 70 W30 which was the highest rated hp
Im asking to see it….I’m not up on the acronyms. What’s PIM?
PIM -Product Information Manual aka assembly manual. It's a known fact that the O Type was not used in the 67 W-30 cars,only the P Axle was used. It was supposed to be used but they broke during the testing. Maybe they upgraded the rockwell on the later O Types.
Last edited by 66-3X2 442; November 24th, 2021 at 06:58 PM.
PIM -Product Information Manual aka assembly manual. It's a known fact that the O Type was not used in the 67 W-30 cars,only the P Axle was used. It was supposed to be used but they broke during the testing. Maybe they upgraded the rockwell on the later O Types.
Gotta say I’ve never heard the assembly manual called the PIM.
If it’s an O type with 3:23 limited slip what axle code would be stamped on it? this makes no sense ...it lists every type O but the 3:23
The Type O Anti-Spin with 3.23:1 should be stamped SF. It is directly below the SE in the pic you posted in Post #7. A.S. stands for Olds-speak Anti-Spin = "posi" = limited slip.
Last edited by BackInTheGame; November 24th, 2021 at 08:16 PM.
The Type O Anti-Spin with 3.23:1 should be stamped SF. It is directly below the SE in the pic you posted in Post #7. A.S. stands for Olds-speak Anti-Spin = "posi" = limited slip.
as far as I understand that list , in the footnotes only the gears with % beside it are type O
as far as I understand that list , in the footnotes only the gears with % beside it are type O .I don’t see any 3:23 L.S. With % beside it
In my mind, the "%" denotes it was available only in the Type O, and not in the previous version, while those without the "%" are available in both versions of the axle. For instance, I don't see an 3.08:1 with a "%" next to it either...
In my mind, the "%" denotes it was available only in the Type O, and not in the previous version, while those without the "%" are available in both versions of the axle. For instance, I don't see an 3.08:1 with a "%" next to it either...
but there is 3:08 type O. I have one here right now. I did find it in the assembly manual
i think that yellow sheet I posted earlier is full of mistakes
gears are for sale.
Last edited by CANADIANOLDS; November 25th, 2021 at 10:20 AM.
The fact that a third party who reprinted that manual chooses to call it an assembly manual doesn't mean the factory called it that. And the 69 just happened to be the one I had handy. People call them "rally wheels" and "ram air hoods".
I don't know for certain how they came from Oldsmobile, but the 1966 "Assembly" manual you posted a pic of is a non-GM reprint. I'm thinking the outfit that reprinted it made up that title page from scratch. As we've learned from aftermarket "licensed" products, licensed does not necessarily mean original nor equal; only that GM is OK with the version being sold.
Joe has already indicated many (most) copies (whatever) have one of several cover pages removed. Look at the bottom RH corner of each page in the 1969 Product Information Manual. If you don't have the OEM manual, it's likely it wasn't included in your purchase. None-the-less, you can validate the PIM on each page of the PIM. Although, I am using a 1969 PIM (FAM), but that's as far back as I go.
OLDSMOBILE PRODUCT INFORMATION MANUAL
Last edited by Vintage Chief; November 25th, 2021 at 01:40 PM.
Well, looks like the lower RH corner information in a 1966 PIM had the same block stating Oldsmobile Graphic Illustration replaced with OLDSMOBILE PRODUCT INFORMATIONMANUAL (at least for 1969 and I believe moving forward in model years). I wonder what year they changed that block of information. I suppose I could look that up; yet, I'm not really too concerned about it - although, it's modestly interesting I reckon.
Gotta say I’ve never heard the assembly manual called the PIM.
Amen. I get so sick of trying to figure out what in the F people are trying to say. It's my fault because I don't get what in the hell you are saying. Use Words People. Is it really that difficult?? I just don't get it. Never will. Thank You.
November 23rd, 2021, 08:20 PM
