1975 nova 8.5 rear end - 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 02-19-2012, 06:22 AM
Registered User
 
Join Date: Feb 2012
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
1975 nova 8.5 rear end

Does anyone know what donor car at pick a part can I grab a 373 ring and pinion out of to put in my 1975 chevy nova 8.5 rear end. should I grab the carrier and all or just take the ring and pinion gear off?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-19-2012, 08:41 AM
BOBCRMAN@aol.com's Avatar
Member
 
Last photo:
Join Date: May 2002
Location: Holly, michigan
Posts: 8,236
Wiki Edits: 0

Thanks: 30
Thanked 296 Times in 276 Posts
I doubt that you will find a 3:73 geared rear in the boneyard. If by some miracle you do. Get the carrier also. Most mid seventies had 2 series carriers.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-19-2012, 08:46 AM
Registered User
 

Last journal entry: update
Last photo:
Join Date: Dec 2011
Location: over here
Posts: 216
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Plenty of 3.73:1 gears if you know what they came in. Most '71-'74 Z/28s, '77.5-'79 Z28s with 4-speed, many 4x4 '80-'up 1/2-ton full-size V8 pickups, some 2WD 6-cylinder '80-up half-ton full-size pickups.
However, I'd rather spend $144 on these: http://www.summitracing.com/search/?...M-741001&dds=1
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-19-2012, 12:11 PM
Registered User
 
Last photo:
Join Date: Jul 2004
Location: At Speed
Age: 51
Posts: 1,392
Wiki Edits: 0

Thanks: 2
Thanked 41 Times in 39 Posts
Lots of later model Chev 4x4 trucks had 3.73 gears. They use 30 spline difs after 89 so that wont work for you. You have to have a diff for a 2.73 and numerically higher ratio to use a normal GM gear set, so if you have a 2.56 or 2.42, it wont work.
Most driveline shops keep old gear sets and have some 3.73 on the shelf.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-19-2012, 05:17 PM
BOBCRMAN@aol.com's Avatar
Member
 
Last photo:
Join Date: May 2002
Location: Holly, michigan
Posts: 8,236
Wiki Edits: 0

Thanks: 30
Thanked 296 Times in 276 Posts
Like I said. Good luck finding pre-80's Z/28's etc in the bone yard. Around SE Michigan you won't find anything older than mid eighties, if that.. Truck units won't work.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-19-2012, 08:06 PM
Registered User
 

Last journal entry: update
Last photo:
Join Date: Dec 2011
Location: over here
Posts: 216
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Truck 8.5 gears are fully interchangeable with car 8.5 gears. Of course they will work. I put the 3.42:1 8.5" gears from my old '83 C-10 into my landlord's '81 Firebird. Even used the C-10 3-series open diff. ( carrier ), since the 'bird was 2.41:1, ( 2-series ) and Scott doesn't need a posi. Both are 28-spline, so I kept the 'bird's original axleshafts.
You're probably thinking of how the truck 12-bolts used an under-size pinion shaft compared to the car 12-bolt.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-21-2012, 04:57 AM
Registered User
 
Join Date: Feb 2012
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
1975 nova rear end

Thanks everybody! I ended up pulling a 342 rear end from a 1989 full size pick up truck for 60 bucks with carrier and all from pick a part in wilmington, CA. its one legged but thats cool for me im not racing!
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:
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
1975 Trans Am 4 link rear end Ginger_ninja Suspension - Brakes - Steering 2 02-13-2011 03:30 PM
Reed 327 nova 1975 nova327 Introduce Yourself 4 10-30-2009 02:44 PM
1975 8.5 rear end camino_man Transmission - Rearend 6 09-18-2004 06:32 AM
1975 nova LN for sale rockslide Hotrodders' Lounge 1 01-12-2003 10:07 AM
1975 Chevy Nova SS pinstriping kalong12 Body - Exterior 3 11-04-2002 03:28 PM


All times are GMT -6. The time now is 09:29 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.