The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-07-2015, 07:08 PM   #1
thejangler2013
Registered User
 
Join Date: Feb 2015
Location: columbia missouri
Posts: 5
Question what differential is this?

newbie here looking to order some parts for this differential on my 1969 c20. can anyone tell me any details about this?

what is this tension screw with the arrow and how do i adjust it?

oh and heres a pic of my project THANKS!!

can u guys see my pics here?
Attached Images
     
thejangler2013 is offline   Reply With Quote
Old 05-07-2015, 07:13 PM   #2
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,688
Re: what differential is this?

Welcome to the board! That is an Eaton HO52. I believe that is called a load bolt, or a pinion preload bolt. Can't tell you what to do with it, hopefully someone else will chime in. In 38 years I've never needed to mess with mine.

Eatons are tough as nails but some parts can be hard to come by. Try your local NAPA or other parts store if you need anything for it.


Edit: If you need to do brakes, check this link: http://67-72chevytrucks.com/vboard/s...d.php?t=660022
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay

Last edited by Stocker; 05-07-2015 at 07:25 PM.
Stocker is offline   Reply With Quote
Old 05-07-2015, 07:13 PM   #3
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,632
Re: what differential is this?

-
Looks like an Eaton HO52 to me. Parts can be hard to find for them depending on what you need.....

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

-
LockDoc is offline   Reply With Quote
Old 05-07-2015, 07:34 PM   #4
thejangler2013
Registered User
 
Join Date: Feb 2015
Location: columbia missouri
Posts: 5
Re: what differential is this?

thanks so much for the info!



Quote:
Originally Posted by Stocker View Post
Welcome to the board! That is an Eaton HO52. I believe that is called a load bolt, or a pinion preload bolt. Can't tell you what to do with it, hopefully someone else will chime in. In 38 years I've never needed to mess with mine.

Eatons are tough as nails but some parts can be hard to come by. Try your local NAPA or other parts store if you need anything for it.


Edit: If you need to do brakes, check this link: http://67-72chevytrucks.com/vboard/s...d.php?t=660022
thejangler2013 is offline   Reply With Quote
Old 05-07-2015, 08:02 PM   #5
thejangler2013
Registered User
 
Join Date: Feb 2015
Location: columbia missouri
Posts: 5
Question Re: what differential is this?

anyone care to comment as to how you adjust that spring tension screw with the arrow?
thejangler2013 is offline   Reply With Quote
Old 05-07-2015, 08:24 PM   #6
kwmech
Senior Member
 
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,593
Re: what differential is this?

There is really no "maintenance adjustments" to be made. The bolt rubs on the inside edge of the ring gear to prevent deflection imposed from the pinion under heavy load
kwmech is offline   Reply With Quote
Old 05-07-2015, 08:44 PM   #7
bronze 72 super
Registered User
 
bronze 72 super's Avatar
 
Join Date: Sep 2007
Location: Rufus Oregon
Posts: 1,187
Re: what differential is this?

Too bad you don't live close to me here in Oregon, I'll give you two of these for spares!! Yes hard to get parts and all of them low geared. DANA 60's much better. Yes they can be swapped over, with minimal problems.
bronze 72 super is offline   Reply With Quote
Old 05-08-2015, 12:33 AM   #8
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,688
Re: what differential is this?

Lil more reading & info for you with part numbers & pics: http://ramchargercentral.com/axle-te...on-ho5272%27s/
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay
Stocker is offline   Reply With Quote
Old 05-08-2015, 02:24 AM   #9
swamp rat
Registered User
 
swamp rat's Avatar
 
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
Re: what differential is this?

If the loc nut has been loosened my thoughts would be to screw the bolt in until it just lightly touched the ring gear, then tighten the loc nut. I have yet to find a spec on it, mine has never been loosened.
__________________
Mike.

Swamp Rat build thread :
http://67-72chevytrucks.com/vboard/s...d.php?t=595019

72 3/4T 4X4
4" BDS Lift
33" BFG's
swamp rat is offline   Reply With Quote
Old 05-09-2015, 12:35 AM   #10
El Dorado Jim
Registered User
 
Join Date: Dec 2009
Location: El Dorado Ca
Posts: 3,374
Re: what differential is this?

Quote:
Originally Posted by thejangler2013 View Post
newbie here looking to order some parts for this differential on my 1969 c20. can anyone tell me any details about this?

what is this tension screw with the arrow and how do i adjust it?

oh and heres a pic of my project THANKS!!

can u guys see my pics here?
Like others have said, it is an Eaton, hard to find parts for and expensive, change it out to a corporate 14 bolt,they are excellent and can be found in any wrecking yard,
El Dorado Jim is offline   Reply With Quote
Reply

Bookmarks

Tags
c20, differential, rear end


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 01:28 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com