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Old 05-07-2015, 07:08 PM   #1
thejangler2013
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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?
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Old 05-07-2015, 07:13 PM   #2
Stocker
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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
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Last edited by Stocker; 05-07-2015 at 07:25 PM.
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Old 05-07-2015, 07:13 PM   #3
LockDoc
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Re: what differential is this?

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

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Old 05-07-2015, 07:34 PM   #4
thejangler2013
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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
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Old 05-07-2015, 08:02 PM   #5
thejangler2013
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Question Re: what differential is this?

anyone care to comment as to how you adjust that spring tension screw with the arrow?
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Old 05-07-2015, 08:24 PM   #6
kwmech
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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
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Old 05-07-2015, 08:44 PM   #7
bronze 72 super
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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.
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Old 05-08-2015, 12:33 AM   #8
Stocker
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Re: what differential is this?

Lil more reading & info for you with part numbers & pics: http://ramchargercentral.com/axle-te...on-ho5272%27s/
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Old 05-08-2015, 02:24 AM   #9
swamp rat
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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.
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Old 05-09-2015, 12:35 AM   #10
El Dorado Jim
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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,
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