ClassicOldsmobile.com  

Go Back   ClassicOldsmobile.com > Vehicle Lineup > Cutlass, 442, and Hurst/Olds > Cutlass
Sign in using an external account
Register Forgot Password?
Search

Welcome to Classic Oldsmobile Forum!
Welcome to Classic Oldsmobile forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Classic Oldsmobile Forum today!


Reply
 
 
 
submit to reddit
 
LinkBack Thread Tools Search this Thread Display Modes
Old August 11th, 2013, 12:10 AM   #1 (permalink)
Registered User
 
Join Date: Jul 2013
Posts: 52
1970 Cutlass 12-bolt rear end

I have a 1970 Cutlass Supreme Convertible with a 12-bolt rear end. Was that rear end standard or an upgraded option?
HitTheHole is offline   Reply With Quote
Old August 11th, 2013, 12:31 AM   #2 (permalink)
Registered User
 
Join Date: Jun 2009
Location: San Jose, CA
Posts: 2,281
It's an O-Axle. 12 bolt cover with a 10 bolt ring and bolt in axles. Standard on all Oldsmobile cars from 67-70 except Canadian built cars.
__________________
Randy
1970 442 (wrecked and sold)
svnt442 is offline   Reply With Quote
Old August 11th, 2013, 12:33 AM   #3 (permalink)
Registered User
 
Join Date: Jul 2013
Posts: 52
Thank you very much for the clarification!
HitTheHole is offline   Reply With Quote
Old August 11th, 2013, 05:27 AM   #4 (permalink)
Registered User
 
drop top olds's Avatar
 
Join Date: Oct 2010
Location: NW Arkansas
Posts: 154
Yes, last year of the O axle. In 1971 went with corporate rear end with bolt in axles (I think).
__________________
Steve
drop top olds is offline   Reply With Quote
Old August 11th, 2013, 09:17 AM   #5 (permalink)
Old(s) Fart
 
joe_padavano's Avatar
 
Join Date: Mar 2007
Location: Northern VA
Posts: 15,519
And to clarify further, it is not a "12 bolt" axle. The number of bolts refer to the bolts holding the ring gear to the carrier. It is coincidental that on Chevy axles the number of bolts on the rear cover matches the number of bolts on the ring gear. That is not normally the case for most rear axles. The Type O axle uses ten bolts to hold an 8.5" ring gear to the carrier. The Chevy 12 bolt uses 12 bolts to hold an 8.875" ring gear to the carrier. Completely different axles. Nothing interchanges.
__________________
Joe Padavano

62 F-85 Deluxe wagon (the NV desert car)
62 F-85 Deluxe wagon (the San Jose car)
64 Vista Cruiser
64 Jetstar 88 Conv
66 442 L-69 Conv
68 W-30
69 H/O
69 442
70 W-30
72 442
84 Custom Cruiser
86 Caprice wagon (w/307 Olds)
joe_padavano is offline   Reply With Quote
Old August 11th, 2013, 09:17 AM
ClassicOldsmobile
1957 Oldsmobile




Paid Advertisement
 
 
 
submit to reddit
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
12 bolt olds 4.33 posi rear TY code 1969 1970 442 rear all rebuilt monzaz Parts For Sale 0 January 13th, 2013 05:33 PM
12 bolt olds 4.33 posi rear TY code 1969 1970 442 rear all rebuilt monzaz Parts For Sale 0 October 2nd, 2012 04:49 AM
1968 1969 1970 3.55 posi Olds 88 98 12 bolt rear 10 bolt cover monzaz Parts For Sale 0 September 11th, 2012 08:27 PM
Gasket seal for 1970 12 bolt rear oldsmansugar Drivetrain/Differentials 5 September 8th, 2011 06:30 AM
1970 12 bolt rear or housing wanted - clean bigblockolds Parts Wanted 10 October 4th, 2009 08:56 PM


All times are GMT -7. The time now is 10:00 PM.


Advertising - Privacy Statement - Terms of Service - Jobs
All content Copyright 2008 by Internet Brands, Inc.

Search Engine Friendly URLs by vBSEO 3.5.2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62