rear end - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old Feb 14th, 00, 09:55 AM Thread Starter
Senior Tech
Johnny
 
Join Date: Dec 1999
Location: Rutledge, Tn.
Posts: 610
Question

Can anyone tell me if a 81 camaro came with a 12 bolt rear end & if so would the posi unit fit a 67,8,9 12 bolt housing?

------------------
johnny
johnnyr is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old Feb 14th, 00, 01:18 PM
Senior Tech
 
Join Date: Nov 1999
Location: West Richland, Wa. USA
Posts: 175
Post

The 12 bolt was not installed in the 81s. The 8.5" 10 bolt is the strongest that came in the camaro in 81.

------------------
68SS ZZ4, 4sp T-10, 12 bolt, getting painted

78Z28, 330hp vortec, TH350, 10 bolt (just finished)
1st & 2nd GENGuy is offline  
post #3 of 6 (permalink) Old Feb 14th, 00, 01:32 PM
 
Join Date: Jan 2000
Location: Setauket,NY
Posts: 28
Post

More often than not the 81 had a 7.5" carrier with 2:73 gears.
Pro Tour RS is offline  
 
post #4 of 6 (permalink) Old Feb 14th, 00, 02:14 PM
Tech Team
 
Join Date: Aug 1999
Posts: 70
Post

Just FYI the 8.5 10 bolt is plenty strong, and are priced much lower than 12 bolts. Mid 70s Z rears can be found with 3:73 posis, and are a great rear. They are 1/2" wider on each end than a 67-9 rear, but by only relocating the leaf pads they WILL fit ok in the 1st gen cars. You can usually find these rears for $300 or less, where as the 12 bolts are commonly $600 and up.

------------------
66/70 chevelle ss396's
69/71 camaros
drptop70ss is offline  
post #5 of 6 (permalink) Old Feb 14th, 00, 03:15 PM
Tech Team
 
Join Date: Oct 1998
Location: Ramsey, MN, USA
Posts: 76
Post

I've never seen any Camaro from 71-81 that came with a 7.5 rear. The third Gen's came with them, but not 2nd Gen's. All 70-81 Camaros came with a leaf spring mounted rear.

"The 1970 rear end differs from the 1971-1981 rear end. In 1970 the rear end was built in both 10 and 12 bolt versions. In 1971, GM instituted a standardized "corporate" rear axle. This rear end was available in a 10 bolt version only." Quoted from: www.nastyz28.com

1982 was the first year of coils in the rear. Most of these were the 7.5 version.

The 8.5 "corporate" rear was designed to replace both the 8.2 and the 12-bolt, which it did for sure in 1971.

------------------
70 & 1/2 RS
SB406 & M20 4spd
9" rear

70 Malibu 350/TH400

Gold member #103
Driveline Technician




[This message has been edited by Scooter (edited 02-14-2000).]
Scooter is offline  
post #6 of 6 (permalink) Old Feb 14th, 00, 03:36 PM Thread Starter
Senior Tech
Johnny
 
Join Date: Dec 1999
Location: Rutledge, Tn.
Posts: 610
Smile

thanks guys

------------------
johnny
johnnyr is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome