weld rear gear - Page 2 - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #16 (permalink)  
Old 06-04-2012, 06:02 PM
BigEd36's Avatar
Registered User
 
Last photo:
Join Date: Nov 2009
Location: Auburn, IN
Age: 65
Posts: 389
Wiki Edits: 0

Thanks: 19
Thanked 43 Times in 39 Posts
Quote:
Originally Posted by Silver Surfer
The only time I have seen a welded differential is on low budget (can't afford a real locker, which is the right way to do it) 4x4 rock crawlers.
Thousands of oval track racers have used welded spider rear ends. The Camaro in my avatar had a welded diff.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 06-04-2012, 06:55 PM
Registered User
 
Last photo:
Join Date: Jul 2010
Location: Artemus KY
Posts: 388
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
ok your spec is 2.56 for the 91 caprice lo3 5.0 but the replacement ring and pinion gears from advance auto are 3.42 it was a mistake 3.72. I will check for the rpo code.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 06-04-2012, 06:57 PM
Registered User
 
Last photo:
Join Date: Aug 2011
Location: hesperia ca
Age: 57
Posts: 63
Wiki Edits: 0

Thanks: 11
Thanked 1 Time in 1 Post
rear diff

why not just up grade the clutch pack in the diff? Less money and no shimming
Reply With Quote Quick reply to this message
  #19 (permalink)  
Old 06-04-2012, 07:09 PM
Registered User
 
Last photo:
Join Date: Jul 2010
Location: Artemus KY
Posts: 388
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i dont know anything about rear gear if you can show me a link.
Reply With Quote Quick reply to this message
  #20 (permalink)  
Old 06-04-2012, 07:22 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by mafiacustomz
ok your spec is 2.56 for the 91 caprice lo3 5.0 but the replacement ring and pinion gears from advance auto are 3.42 it was a mistake 3.72. I will check for the rpo code.
There are two different carrier series depending on the rear gear ratio:

2.56 and higher gears ("higher" gears have lower numbers, like 2.41, 2.29, etc.) go on the 2 series carrier
2.73 and lower ("lower" gears = higher numbers, like 3.08, 3.23, etc.) go on the 3 series carrier

You can install a 3-series gear on a 2-series carrier by using a ring gear spacer, but this is not advised for stick shift applications, or if there's a lot of traction, HP and/or weight involved.
Reply With Quote Quick reply to this message
  #21 (permalink)  
Old 06-04-2012, 08:10 PM
Jim Rockford's Avatar
World Famous VF-14
 

Last journal entry: Cleaned it up...
Last photo:
Join Date: Dec 2008
Location: Virginia
Age: 43
Posts: 411
Wiki Edits: 0

Thanks: 10
Thanked 0 Times in 0 Posts
Reply With Quote Quick reply to this message
  #22 (permalink)  
Old 06-04-2012, 09:53 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Here ya' go:

Reply With Quote Quick reply to this message
  #23 (permalink)  
Old 06-05-2012, 07:59 AM
Hot Rod Has Been
 
Last photo:
Join Date: Aug 2010
Location: Wisconsin
Age: 65
Posts: 187
Wiki Edits: 0

Thanks: 0
Thanked 6 Times in 5 Posts
Quote:
Originally Posted by BigEd36
Thousands of oval track racers have used welded spider rear ends. The Camaro in my avatar had a welded diff.
That's right... and also thousands of drag cars had/now have welded spiders. No different than a spool or mini-spool. Common practice...
Reply With Quote Quick reply to this message
  #24 (permalink)  
Old 06-09-2012, 04:53 PM
rusthater89's Avatar
Registered User
 
Last photo:
Join Date: Jul 2011
Location: new jersey
Posts: 211
Wiki Edits: 0

Thanks: 4
Thanked 2 Times in 2 Posts
The limited slip allows the tires to slip. The outer tire in a turn needs make more turns than the inside tire.

When driving straight the differential will work as a single unit rotating both tires. When you make a turn the spider gears will walk allowing slippage so you don't get wheel hop and such. This is important and not a good idea for street driving to weld the spider gears up.
Reply With Quote Quick reply to this message
  #25 (permalink)  
Old 06-09-2012, 05:54 PM
jonahb's Avatar
Registered User
 
Last photo:
Join Date: May 2009
Location: St. George, NB
Age: 27
Posts: 119
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by Jim Rockford

LOL, I cannot believe someone would do that.


Now back on topic, if memory serves me right, you have a 120 volt mig welder running self shielded flux core. IMHO If you are going to weld up the spiders, I would at least borrow/rent/whatever a machine that has more amperage like a 220 volt machine with 70s-6 mig wire or dual shield flux core (electrode/wire positive) because of the better penetration compared to the self shielded flux core (eletrode/wire negative). Just use your dryer plug in and make a extension cord if you do not have 220 volt outside.

I'm with colbalt327 and others about this being a bad idea, at least get someone who has done it before or a certified welder (with rigging would be nice ).
Reply With Quote Quick reply to this message
  #26 (permalink)  
Old 06-10-2012, 09:34 PM
1971BB427's Avatar
Registered User
 

Last journal entry: Latest changes
Last photo:
Join Date: Dec 2010
Location: Portland
Posts: 1,702
Wiki Edits: 0

Thanks: 14
Thanked 278 Times in 243 Posts
Quote:
Originally Posted by AutoGear
EVEN dragracing its not a good idea. Think about driving through the pits and all the crud that can get on your tires; or turning at the end to go on the return road. One side has to slip somewhat somewhere or youre going to be unhappy. Best advice, get a posi axle and put under your car. Avoid Lockers and the horrible 'Gov-Lock' used under some GM cars
Excuse me for saying this, but HOGWASH!
Welding a rearend gear is a horrible idea for the street, but almost every true drag racing car is using a spooled rearend, and that works the same as a welded up rear, except much stronger.
They are not only a good idea for drag racing, but much better than a posi and stronger than a posi too. A spool or a welded rear is a bad idea on the street, but at the track a spool is great. That's where they were designed to be used.
And as for lockers; I've run a locker in my '71 Camaro on the street for over 30 years behind a 427, and it's not only worked perfectly, but it's been trouble free. The right locker is a very good option, and often a bit cheaper than some posi units.
Reply With Quote Quick reply to this message
  #27 (permalink)  
Old 06-11-2012, 05:30 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
I think we all pretty much agree a spooled or welded diff on the street is NOT a good plan. My take on the relative strength between them is this: Lincoln locker or spool really amounts to much the same thing strength-wise, because either one is still only as strong as the carrier and ring & pinion. But welded has the added chance of breaking due to the welds failing or because of the heat treatment being compromised by welding.

Either one can be too much for stock axles (especially considering the weight of an A-body like the OP's Caprice)- and w/C-clips, we all know what can happen when an axle lets go...

Going back to my first car, I used a welded diff in my '55 post w/a 301 and 3-speed manual. Was just dumb luck I didn't have a problem. Well, other than wearing rear tires out, squealing like a pig around every corner in town, and having to plan ahead if entering a parking lot or doing any lock-to-lock steering maneuvering.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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
Weld on or bolt on rear fenders 1930u Body - Exterior 6 09-27-2007 07:34 PM
71 nova rear end. weld the axle housings or not? chevymastermind Transmission - Rearend 5 03-26-2007 08:39 PM
pin holes in weld after welding new metal in under rear window muskin Body - Exterior 23 06-19-2006 01:14 PM
Odd rear end leak, leaks out weld plugs? bartamos Transmission - Rearend 3 12-11-2005 09:56 PM
Rear gear choice, Gear to Tow icegnome Transmission - Rearend 3 12-03-2002 07:17 AM


All times are GMT -6. The time now is 03:37 PM.


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.