2 Ton GM axles? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > General Tech > General 4x4 Discussion
Notices

Reply
 
Share LinkBack Thread Tools Display Modes
Old 07-24-2010, 09:40 PM   #1 (permalink)
JF
Registered User
 
Join Date: Apr 2009
Member # 133890
Posts: 1,896
2 Ton GM axles?

There are a set of "GM 2 ton axles" on my local craigslist. I searched but I couldn't find any info on them. Can someone give me the low down? I am guessing they aren't that great since there doesn't seem to be much info on them.



JF is offline   Reply With Quote Quick reply to this message
Old 07-24-2010, 09:48 PM   #2 (permalink)
Registered User
 
Join Date: Mar 2008
Member # 111310
Location: Woods Cross, Ut
Posts: 189
If they are from the 50's gmc 2 ton trucks.

The third comes out, and can be swapped front to rear, which means the front spins backwards. Special t-case without low range to do this.

I wouldnt run them, I gave a set away.
chevycrew is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 07-24-2010, 10:34 PM   #3 (permalink)
Pirate4x4 Addict!
 
Corey Young's Avatar
 
Join Date: Jul 2003
Member # 21622
Location: Washington State
Posts: 7,123
Send a message via AIM to Corey Young Send a message via Yahoo to Corey Young
Looks like WW2/ Korean War era military axles.
Corey Young is offline   Reply With Quote Quick reply to this message
 
Old 07-24-2010, 11:21 PM   #4 (permalink)
DWT
Pirate4x4 Addict!
 
DWT's Avatar
 
Join Date: May 2003
Member # 19850
Location: Eastern WA
Posts: 13,728
Brittle shafts that aren't as tough as stock rockwells but hell if the price is right go for it.. Yes the front diff spins backwards, no problem all you have to do is flip it over and you can run a normal t case with it.
__________________
'89 auto x toyota pickup, most fun I've ever had with my clothes on.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Taiwanese Garbage should stay in Taiwan.
DWT is online now   Reply With Quote Quick reply to this message
Old 07-25-2010, 12:16 AM   #5 (permalink)
Registered User
 
Join Date: Oct 2005
Member # 55444
Location: Vancouver Island
Posts: 12,261
There is actually a ton of info about them out there, and there is usually a "how good are GMC 2.5ton axles" thread, at least once a month between the mud section and the chevy section.
__________________
[CENTER]I have Dumb Ideas[/CENTER]
spidr is offline   Reply With Quote Quick reply to this message
Old 07-25-2010, 03:51 AM   #6 (permalink)
Registered User
 
Join Date: Dec 2002
Member # 15354
Location: Jacksonville, FL
Posts: 1,733
Send a message via AIM to iniviate
Quote:
Originally Posted by DWT View Post
Brittle shafts that aren't as tough as stock rockwells

depends.... there are severl different ones. the fine spline ones are supposed to be stronger than stock rockwells.

i ran a set on 49" v-treads without issue.
__________________
02 S10 - LS1, 4L80, 2.5 tons, 14.9-24 R1's - In Progress.
88 YJ - 350, 1 tons, 40's
iniviate is offline   Reply With Quote Quick reply to this message
Old 07-25-2010, 07:20 PM   #7 (permalink)
JF
Registered User
 
Join Date: Apr 2009
Member # 133890
Posts: 1,896
Quote:
Originally Posted by spidr View Post
There is actually a ton of info about them out there, and there is usually a "how good are GMC 2.5ton axles" thread, at least once a month between the mud section and the chevy section.
I searched but the search engine won't include "2" so it only brought up a million threads including "ton" in the title. And the dude doesn't have them listed as 2.5, he has them as 2 ton ... IDK if it's listed wrong or not.

Quote:
Originally Posted by iniviate View Post
depends.... there are severl different ones. the fine spline ones are supposed to be stronger than stock rockwells.

i ran a set on 49" v-treads without issue.
What were you doing for lockers? Just welded?

Are the any numbers such as a BOM that would offer more info?

Last edited by JF; 07-25-2010 at 07:24 PM.
JF is offline   Reply With Quote Quick reply to this message
Old 07-25-2010, 07:22 PM   #8 (permalink)
Registered User
 
Join Date: Oct 2005
Member # 55444
Location: Vancouver Island
Posts: 12,261
They sure look the same as every 2.5 ton GMC axle that's been asked about. Try that.
__________________
[CENTER]I have Dumb Ideas[/CENTER]
spidr is offline   Reply With Quote Quick reply to this message
Old 07-26-2010, 03:22 PM   #9 (permalink)
JF
Registered User
 
Join Date: Apr 2009
Member # 133890
Posts: 1,896
Quote:
Originally Posted by spidr View Post
They sure look the same as every 2.5 ton GMC axle that's been asked about. Try that.
Looks like you're right, the pics from the ad are pretty shitty but I found this one of a set of 2.5 tons advertised for sale on here (for $1400 ) and the diff cover looks to be the same.



In searching further I also found some more info from iniviate

Quote:
Originally Posted by iniviate View Post
i ran them on 49" tires without breakage...

there are 3 versions. 6.17 gears, 6.67 gears, planetaries.

i only know of one person with the planetary style. they're holding up fine to 65" tires.

6.67 should be course spline shafts. this is the weakest design.

6.17 should be fine spline shafts. these are supposedly stronger than a toploader. all i know is i never broke mine. there is a "ring" on the end of the axle shaft, which makes them easy to identify without disassembly.


you don't need to run the special transfer case.

if you want a drivers side drop, you can spin the housing around and swap knuckles. you'll need to clearance the diff cover for the tie rod. other than that, no modifications. just moving things around.

if you want a passenger side drop, you'll need to spin the chunk. this will require clearancing the housing. it will become obvious when you pull the chunk. you will also need to shorten one axle shaft.

if you can get them cheap, run them. don't pay toploader prices for them though.

The ad was for $500 obo ... so far I don't think I want them that much. I am looking for info regarding grafting the knuckles onto a 14 bolt. If I could haggle and get the front for ~$100 and then pick up a couple 14b rears for ~$100 ea it might be worth the effort.

So if you have info on chopping the knuckles link it up.

iniviate- I am interested to know what you did for lockers and brakes. Thanks
JF is offline   Reply With Quote Quick reply to this message
Old 07-26-2010, 05:32 PM   #10 (permalink)
Registered User
 
Join Date: Dec 2002
Member # 15354
Location: Jacksonville, FL
Posts: 1,733
Send a message via AIM to iniviate
Quote:
Originally Posted by JF View Post
iniviate- I am interested to know what you did for lockers and brakes. Thanks

welded, but i think somebody makes a locker for it.... i can't remember who though and i'm sure they'll be proud of it.

i ran a pinion brakes. there are some with factory disc brakes. i'll go see if i can dig up pics.
__________________
02 S10 - LS1, 4L80, 2.5 tons, 14.9-24 R1's - In Progress.
88 YJ - 350, 1 tons, 40's

Last edited by iniviate; 07-26-2010 at 05:32 PM.
iniviate is offline   Reply With Quote Quick reply to this message
Old 07-26-2010, 05:35 PM   #11 (permalink)
Registered User
 
Join Date: Dec 2002
Member # 15354
Location: Jacksonville, FL
Posts: 1,733
Send a message via AIM to iniviate
ok... this is all i was able to find. looks like you would need to fab up your own caliper mounts.

http://chuckstrucks.iforumer.com/vie...trucks#1222752

(yes, i just posted a tech link to chucks trucks. )
__________________
02 S10 - LS1, 4L80, 2.5 tons, 14.9-24 R1's - In Progress.
88 YJ - 350, 1 tons, 40's
iniviate is offline   Reply With Quote Quick reply to this message
Old 07-27-2010, 09:46 AM   #12 (permalink)
Registered User
 
Join Date: Dec 2006
Member # 84172
Posts: 340
They look like M135 axles.. Identical to the ones on my dads 56 M135 GM 6x6.

SO I would start by searching on Steel Soldiers and see what they have for information.
BENNY87 is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Pirate4x4.Com : 4x4 and Off-Road Forum 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 for yourself.

** A VERIFICATION EMAIL IS SENT TO THIS ADDRESS TO COMPLETE REGISTRATION!! **

Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

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



All times are GMT -7. The time now is 08:28 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.