Specs for rear differential - The 1947 - Present Chevrolet & GMC Truck Message Board Network

keith808 · 12-01-2022, 03:00 PM

Hello
I have searched the forum and have found various answers
I also have the 60-66 assembly manual but it does not have these answers

I powder coated the rear axle and want to assemble back to stock, not changing anything.

1962 235 I6 C10 long bed 10 bolt

What is the backlash ? .007 give or take a thousandth??
What is the pinion nut torque?
What is the cover plate torque?
What is the opposite side torque, the part the pinion is installed in?

Thank you for any help

**cwcarpenter98** · 12-01-2022, 09:35 PM

Truck 10 bolt from a later year squarebody, or stock 62 HO32? If it's a squarebody rear, you just might be searching in the wrong spot. Please post a picture to help us help you

keith808 · 12-02-2022, 02:40 AM

Here are some pics.

I believe and hope it is the 62 stock one.

I never took one complete but only as I stripped it down.

Like I said it went to get powder coat with the rest of the chassis and suspension.

Let me know what you think it is and appreciate the help with the specs

**bhap** · 12-02-2022, 08:05 AM

Looks like the stock Eaton HO32/33. I think those specs are in the Service Manual. I’ll look later today.
Posted via Mobile Device

**The Rocknrod** · 12-02-2022, 08:12 AM

This may help? - http://www.67-72chevytrucks.com/vboa...14&postcount=3

Chevy nutcase · 12-02-2022, 12:04 PM

Quote:

Originally Posted by keith808

Hello
I have searched the forum and have found various answers
I also have the 60-66 assembly manual but it does not have these answers

I powder coated the rear axle and want to assemble back to stock, not changing anything.

1962 235 I6 C10 long bed 10 bolt

What is the backlash ? .007 give or take a thousandth??
What is the pinion nut torque?
What is the cover plate torque?
What is the opposite side torque, the part the pinion is installed in?

Thank you for any help

After rebuilding my 66 12 bolt I've learned a few things. There is no set pinion nut torque, that gets tightened until the correct preload is on the pinion bearings unless 10 bolt doesn't have a crush sleeve. As for the cover torque, I've never looked up torque specs on covers or tins that seal with a gasket. I tighten them by feel where they are tight enough but not so much they crush and split the gasket.

keith808 · 12-02-2022, 07:44 PM

Thank you everyone who responded, very helpful. I appreciate it. I will get the shop manual to verify everything and should be a good resource for the rest of the build.
Thanks

12-01-2022, 03:00 PM	#1
keith808 Registered User Join Date: Dec 2018 Location: Calexico Posts: 20	Specs for rear differential Hello I have searched the forum and have found various answers I also have the 60-66 assembly manual but it does not have these answers I powder coated the rear axle and want to assemble back to stock, not changing anything. 1962 235 I6 C10 long bed 10 bolt What is the backlash ? .007 give or take a thousandth?? What is the pinion nut torque? What is the cover plate torque? What is the opposite side torque, the part the pinion is installed in? Thank you for any help

12-01-2022, 09:35 PM	#2
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,421	Re: Specs for rear differential Truck 10 bolt from a later year squarebody, or stock 62 HO32? If it's a squarebody rear, you just might be searching in the wrong spot. Please post a picture to help us help you __________________ Christian Carpenter 1963 C10 - Frankentruck 283, 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

12-02-2022, 02:40 AM	#3
keith808 Registered User Join Date: Dec 2018 Location: Calexico Posts: 20	Re: Specs for rear differential Here are some pics. I believe and hope it is the 62 stock one. I never took one complete but only as I stripped it down. Like I said it went to get powder coat with the rest of the chassis and suspension. Let me know what you think it is and appreciate the help with the specs Attached Images

12-02-2022, 08:05 AM	#4
bhap Senior Member Join Date: Mar 2006 Location: Pittsburgh, PA Posts: 240	Re: Specs for rear differential Looks like the stock Eaton HO32/33. I think those specs are in the Service Manual. I’ll look later today. Posted via Mobile Device

12-02-2022, 08:12 AM	#5
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Specs for rear differential This may help? - http://www.67-72chevytrucks.com/vboa...14&postcount=3 __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

12-02-2022, 07:44 PM	#7
keith808 Registered User Join Date: Dec 2018 Location: Calexico Posts: 20	Re: Specs for rear differential Thank you everyone who responded, very helpful. I appreciate it. I will get the shop manual to verify everything and should be a good resource for the rest of the build. Thanks



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