82 cutlass - 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 02-26-2013, 06:17 PM
Registered User
 
Join Date: Feb 2013
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
82 cutlass

Hi all, hey just trying to gather some info on my car. Its a 1982 cutlass supream , it has a 350 with a th350 , 3000 stall. Now the rear end is stock and I have no clue how to tell what I have , I want to order a gear set and a posi off summit racing but need to know the info on the diff.Just wondering if some one knows anything on these, I am sorry for asking a question with out much info attached , the rear end has 10 bolts on the cover
thanks in advance

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-26-2013, 06:22 PM
Valkyrie5.7's Avatar
www.generationhighoutput. com
 
Last wiki edit: Painting chrome wheels
Last journal entry: Stopping my journal entries here
Last photo:
Join Date: Feb 2010
Location: Phoenix
Age: 27
Posts: 897
Wiki Edits: 15

Thanks: 147
Thanked 71 Times in 62 Posts


This should clear it up for you.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-26-2013, 06:33 PM
Registered User
 
Join Date: Feb 2013
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hey, thanks so much for the reply it really helps out , I have the 7.5 rear
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-26-2013, 07:31 PM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
Yes, you have the 7.5 rear end. All of the '78 to '87 G body cars got the 7.5 rear end with 26 spline axles except the GN, T Type and a few 442s.

I'd like to recommend the Eaton Posi or Yukon Dura Grip. I would also like to warn you that the Auburn is a piece of crap and you should avoid it. I also recommend going to Randy's Ring & Pinion or Tom's Differentials for rear end parts instead of Summit. You will need a good installation kit to go with the parts that you want and these 2 places have the best installation kits and very good prices on the other stuff.

Also check your axles before ordering anything. It is very comon for the axles to be worn where they run in the bearings. If your axles are worn then you need to replace them. You might as well upgrade to 28 spline axles while you are doing this. 28 spine parts don't cost any more than 26 spline parts, and they are quite a bit stronger.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-26-2013, 09:03 PM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 7,395
Wiki Edits: 0

Thanks: 291
Thanked 707 Times in 682 Posts
might want to buy a bolt in complete rear end. depending on total costs.when you order a complete diff,you also choose what ratio it comes with
My friend Mike got a complete diff for his 86 Monte Carlo with gears and pose for $1200.บบ
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-26-2013, 09:27 PM
gearheadslife's Avatar
MentalMuffinMan
 
Last photo:
Join Date: Nov 2012
Posts: 2,036
Wiki Edits: 0

Thanks: 84
Thanked 227 Times in 214 Posts
Quote:
Originally Posted by vinniekq2 View Post
might want to buy a bolt in complete rear end. depending on total costs.when you order a complete diff,you also choose what ratio it comes with
My friend Mike got a complete diff for his 86 Monte Carlo with gears and pose for $1200.บบ
this...
also vendors make upper links so you can install a 68-72 g.m. a bodt(chevelle) 12 bolt or the unloved in some circles 10 bolt..
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-27-2013, 08:40 AM
Member
 
Last photo:
Join Date: Jun 2004
Location: TN
Posts: 424
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
What engine do you have? The only factory V8 engine available in the Cutlass after 1979 was a 307.

John
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-27-2013, 08:46 AM
Registered User
 
Join Date: Feb 2013
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hey thanks Big Gear Head I checked out those sites and am going to order from toms I think. Hey I forget is 373 lower or higher then 308?.
Hey Vinni do you by chance know were he got the bolt in, cheapest I can find is 2200
The motor is a 350 edelbrock aluminum heads , comp 270h cam, roller rockers
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 02-27-2013, 09:34 AM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 7,395
Wiki Edits: 0

Thanks: 291
Thanked 707 Times in 682 Posts
PM me ,My friend Mike is in a retirement home,he has M S. I am do to call him anyways
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 02-27-2013, 11:18 AM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
Moser makes a bolt in 12 bolt. If you can find a GN or T Type rear end they are the 8.5 10 bolt, which is quite a bit stronger than the 7.5. They are expensive, but cheaper than the 12 bolt.

The 7.5 uses a 2 series differential for 3.08 to 2.14 gears, and a 3 series for 3.23 to 4.56.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 02-27-2013, 04:18 PM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,547
Wiki Edits: 0

Thanks: 3
Thanked 331 Times in 328 Posts
get some 7.5" series 3 4.10's and the Auburn 3 series posi. This Auburn limit slip diff is trouble free and works great.

Your axles are 26 spline. Find someone qualified to do the ring and pinion gear setup.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 02-27-2013, 05:07 PM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
The Auburn works fine unles you abuse it. Then they wear out much quicker than the Eaton or Dura Grip and fill the rear end with powdered metal, which ruins the bearings. They also can not be rebuilt and are scrap metal when they wear out. I've had to change out too many Auburn differentials that lived a very short life. Two of them less than a year. And along with changing the differential you have to completely disassemble the rear end and clean out all of the metal sludge in the housing and replace every bearing in it. Then there is the one that exploded and busted 3 holes in the rear end housing. That whole rear end had to be replaced.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 02-28-2013, 08:47 AM
Registered User
 
Join Date: Feb 2013
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hey just a update , going to pull the axles out today to see if they are ok or not , then I think I will be going with the yukon gear posi , and richmond gears 373 , what do you guys think?
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 02-28-2013, 09:38 AM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
Good choice. Get the Yukon installation kit with Timken bearings too.
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
78 cutlass workman306 Introduce Yourself 2 11-27-2010 03:52 PM
86 cutlass smokeyj Transmission - Rearend 3 04-03-2009 05:46 AM
75 cutlass uph98021 Body - Exterior 2 03-05-2009 01:16 AM
68 cutlass whiteboyjay Electrical 1 07-04-2007 03:49 PM
cutlass help TWOPLYM Engine 3 07-12-2005 06:12 PM


All times are GMT -6. The time now is 05:02 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.