Will it work rear end swap? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-14-2012, 10:31 PM
Registered User
 
Join Date: Feb 2012
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Will it work rear end swap?

Ok, to start with a little history. A 78 Camaro fell into my lap, I wasn't very interested until i popped the hood and looked at a 454 bbc. It had been parked since 1995, I cleaned some stuff off, replaced some vacuum lines, and the vacuum advance, new fluids and much to my delight it purred like a kitten. I'll add it fired first try... Anyway, when I looked under the rear of the car the cover was off the diff, I opened the trunk and found the cover with the ring and spider gears in pieces... My 14 year old son begged me to get the car, so I did and we have turned it into a project for him (at least that is what i'm telling him). When I told the guy I got the car from I was gonna have to replace the rear end (stock 2.41 open) he told me he had another one I could have. I walked to the back of his property and found it. I was surprised to find it actually came out of a 69 camaro. 12 bolt posi 3.31. So, I took it (along with a set of JL8 axles, I won't use them they are for sale). Now comes the work, I can cut and weld spring perches. BUT has anyone ever done this that can tell me if im gonna run into any major problems? Yoke? Center Line? Drive Shaft? I honestly cannot find anyone (yet) who has taken a 1st gen rear end and made it fit in a 2nd gen camaro....any help is much appreciated

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-15-2012, 09:13 AM
Registered User
 
Last photo:
Join Date: Jul 2004
Location: At Speed
Age: 51
Posts: 1,333
Wiki Edits: 0

Thanks: 2
Thanked 27 Times in 27 Posts
I would sell the 12bolt to someone restoring a Gen1 and buy any 8.5 Gen2. 12bolts bring large cash. Get an Eaton posi.

The JL8 stuff is of course super rare. The rear calipers, though are very similar to Corvettes, are unique. I have a complete axle shoved under a bench from a race project 20 odd years ago.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-15-2012, 01:06 PM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
X2^^, you could sell the 1st Gen Rear & have enough to buy 3 or 4 nice 2nd Gen Rears.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-16-2012, 04:07 PM
Registered User
 
Join Date: Feb 2012
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
more

I have considered that option, but found a small crack in the spring perch weld on the 69, just thought it would be easy enough if I had to do some welding on the axle tube anyway it might be just as easy to move the perches, if everything else was gonna line up. Well, I'm not sure... I was offered $900 as it sits. I may just take it and run... I have to add a question here. I was told by a "camaro" guy that the axles I have are for the JL8 set up, I just can't find anywhere to verify that they are. Is there anything about them that is different? Also, what is a good fair price for them? I have no clue...
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-18-2012, 12:17 PM
Registered User
 
Join Date: Jan 2011
Location: Hopewell, Va
Age: 62
Posts: 1,168
Wiki Edits: 0

Thanks: 0
Thanked 117 Times in 113 Posts
JL8 axles

There was a HD 4 wheel disc brake service package sold in 1968 & 1969. The axle tubes were the same o.d. from the center to the brake flange. The production JL8 housing has a tapered end at the brake flange. All the axles should be the same in the JL8 and HD service package. The axle bearings are larger on the HD service package. But I was checking at Advance auto parts they list only 1 axle for a 69 camaro so ???
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-18-2012, 01:22 PM
Registered User
 
Last photo:
Join Date: Jul 2004
Location: At Speed
Age: 51
Posts: 1,333
Wiki Edits: 0

Thanks: 2
Thanked 27 Times in 27 Posts
Many rear disc setups require the axle shaft flange to be smaller to fit inside the rotor, especially back in the day of 14 inch wheels and tiny rotors.
I have rebuilt rear ends for restoration guys that are willing to spend $1000 and up for a bare 12-bolt housing with the correct date on it for the GenI cars. If you're not worried about such matters, get a Moser 12BC assembly as its a much stronger piece than the GM deal.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lill Bit Of Body Work And Chassis Work... h0trod389 Hotrodding Basics 7 05-23-2007 07:12 AM
some of my work inkwork Hot Rod Art 32 12-01-2006 12:19 PM
porting 882s at home,no machine work, rebuild, will it work? what are they capable of Warrant Engine 6 12-27-2005 12:14 AM
will this work 53LEDSLED General Rodding Tech 7 04-14-2004 10:40 AM
Stuff I work on at work :) esears Hotrodders' Lounge 6 09-29-2003 01:08 PM


All times are GMT -6. The time now is 06:10 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.