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 06-06-2016, 08:13 PM   #1
UMDSmith
Registered User
 
Join Date: Nov 2014
Location: Salisbury, Maryland
Posts: 31
HO52 torque specs?

Hey all, thanks to fellow member Todd (Tdrcreyn4) I scored a eaton no-spin to put into my 70 c20.

I got it completely apart and everything looks great, but I am having a hard time finding torque specs for the carrier and ring gear bolts.

I assume they are somewhat similar to the 14bff, but I'd rather do the job right. If anyone has those specs anywhere, I'd really appreciate it.
UMDSmith is offline   Reply With Quote
Old 06-06-2016, 08:38 PM   #2
Wizo
Registered User
 
Wizo's Avatar
 
Join Date: Dec 2012
Location: Tacoma WA
Posts: 274
Re: HO52 torque specs?

If you can't find specs for the rear end try and google torque specs for the hard ware itself.You will need to determine what grade the bolts are first. Like, are they grade 3,5,8.I know there are tables out there because i have one hanging on my shop wall.hope this helps.
__________________
1970 3/4 ton long box GMC
!968 C10 short stepside (Papa's Old Lorry)
2006 2500 HD Silverado Duramax/Alison
Wizo is offline   Reply With Quote
Old 06-06-2016, 08:53 PM   #3
UMDSmith
Registered User
 
Join Date: Nov 2014
Location: Salisbury, Maryland
Posts: 31
Re: HO52 torque specs?

I'd assume grade 8. I googled for HO52 differential torque specs and read the pirate4x4 forums where they talk about them. Just wasn't sure if people had the information lying around. I'll try the individual parts, but just searching for carrier bolts may not help that much.
UMDSmith is offline   Reply With Quote
Old 06-06-2016, 09:45 PM   #4
FirstOwner69
Senior Member
 
FirstOwner69's Avatar
 
Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,839
Re: HO52 torque specs?

I have never taken one apart. However, the "Specifications" section, subsection 4 at the back of my 1969 Chassis Service Manual has torque specs for all the axles. The same info is at the back of the Chassis Overhaul Manual. If you don't have a manual for your year check here.
http://67-72chevytrucks.com/vboard/s...d.php?t=558016

For the 5200# capacity axle, it shows a bolt torque for the "ring gear" of 110 and 45 for the "differential carrier to axle housing". I won't guarantee that these are the ones you are looking for. I'm a novice when it comes to differentials, so you better check the appropriate manual from the link above.

Last edited by FirstOwner69; 06-06-2016 at 10:07 PM.
FirstOwner69 is offline   Reply With Quote
Old 06-06-2016, 09:57 PM   #5
Ol Blue K20
Proprietor of Dale's Corner
 
Ol Blue K20's Avatar
 
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 15,834
Re: HO52 torque specs?

SSTim has factory manuals available on this site. They should have your specs. I'm sorry I dont have a link but do a search and you should find them.
__________________
"Some Days Chickens And Some Days Feathers"

Dale
XNGH ECV Sam Brannan 1004

R.I.P. 67ChevyRedneck
R.I.P. Grumpy Old Man
Ol Blue K20 is offline   Reply With Quote
Old 06-06-2016, 10:03 PM   #6
UMDSmith
Registered User
 
Join Date: Nov 2014
Location: Salisbury, Maryland
Posts: 31
Re: HO52 torque specs?

Thanks guys, Ill check out the links. Much appreciated.
UMDSmith is offline   Reply With Quote
Reply

Bookmarks


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 05:47 AM.


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