Rear axle U-bolts torque specs? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Reyals Bemus · 01-28-2013, 11:21 PM

Does anyone know what the torque specs are for the rear axle u-bolts? This is for a truck with trailing arms and the two big u-bolts. I did a search but couldn't find anything...

LostMy65 · 01-29-2013, 12:10 AM

This was posted just awhile back.
I'll see if I can find the post.
Posted via Mobile Device

Crx150zc · 01-29-2013, 12:12 AM

If this were a honda all bolts are tighten until it strips and back off a quarter turn.

Reyals Bemus · 01-29-2013, 12:39 AM

I did some more searching and think I found the answer which is 145 ft/lbs. Sounds good to me!

LostMy65 · 01-17-2016, 06:14 PM

Thanks

1strong63 · 01-19-2016, 01:26 AM

my 63 work shop manual says 220-320. 125-165 for the pivots bolts with truck on the ground.

LostMy65 · 01-19-2016, 10:29 AM

I don't think I can pull my bar that much.
Maybe I need a 4 foot bar.
320 divided by 4 = 80. I can do that.

chevy_mike · 01-19-2016, 11:51 AM

I actually bought a new torque wrench for doing these (and stuff on my big Dodge Ram truck). I did 220 ft. lbs. My new torque wrench goes to 250. It was hard to get it to click at 220. LOL

1strong63 · 01-19-2016, 11:52 AM

you have a range of 100. maybe it's given for new/used u bolt. the lower will be used and the higher will be for new, as it's lenghtening it when you torque it?

1strong63 · 01-19-2016, 11:54 AM

Quote:

Originally Posted by chevy_mike

I actually bought a new torque wrench for doing these (and stuff on my big Dodge Ram truck). I did 220 ft. lbs. My new torque wrench goes to 250. It was hard to get it to click at 220. LOL

yep your body might slide on the floor under your arm power with this kind of torque on a short wrench!

**The Rocknrod** · 01-19-2016, 12:22 PM

Not sure if this will help on chassis torque specs:
http://www.chuckschevytruckpages.com...que_specs.html

picklito · 01-19-2016, 12:30 PM

Mine are at 140 ft-lbs and those rear wheels are still back there.

01-28-2013, 11:21 PM	#1
Reyals Bemus Registered User Join Date: Dec 2007 Location: Billerica, MA Posts: 329	Rear axle U-bolts torque specs? Does anyone know what the torque specs are for the rear axle u-bolts? This is for a truck with trailing arms and the two big u-bolts. I did a search but couldn't find anything...

01-29-2013, 12:10 AM	#2
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,525	Re: Rear axle U-bolts torque specs? This was posted just awhile back. I'll see if I can find the post. Posted via Mobile Device __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

01-29-2013, 12:12 AM	#3
Crx150zc Registered User Join Date: Dec 2012 Location: Colorado Springs, Co. Posts: 55	Re: Rear axle U-bolts torque specs? If this were a honda all bolts are tighten until it strips and back off a quarter turn.

01-29-2013, 12:39 AM	#4
Reyals Bemus Registered User Join Date: Dec 2007 Location: Billerica, MA Posts: 329	Re: Rear axle U-bolts torque specs? I did some more searching and think I found the answer which is 145 ft/lbs. Sounds good to me!

01-17-2016, 06:14 PM	#5
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,525	Re: Rear axle U-bolts torque specs? Thanks __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

01-19-2016, 01:26 AM	#6
1strong63 Registered User Join Date: Jan 2015 Location: france Posts: 134	Re: Rear axle U-bolts torque specs? my 63 work shop manual says 220-320. 125-165 for the pivots bolts with truck on the ground.

01-19-2016, 10:29 AM	#7
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,525	Re: Rear axle U-bolts torque specs? I don't think I can pull my bar that much. Maybe I need a 4 foot bar. 320 divided by 4 = 80. I can do that. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

01-19-2016, 11:51 AM	#8
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Rear axle U-bolts torque specs? I actually bought a new torque wrench for doing these (and stuff on my big Dodge Ram truck). I did 220 ft. lbs. My new torque wrench goes to 250. It was hard to get it to click at 220. LOL __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

01-19-2016, 11:52 AM	#9
1strong63 Registered User Join Date: Jan 2015 Location: france Posts: 134	Re: Rear axle U-bolts torque specs? you have a range of 100. maybe it's given for new/used u bolt. the lower will be used and the higher will be for new, as it's lenghtening it when you torque it?

01-19-2016, 12:22 PM	#11
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Rear axle U-bolts torque specs? Not sure if this will help on chassis torque specs: http://www.chuckschevytruckpages.com...que_specs.html __________________ 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?

01-19-2016, 12:30 PM	#12
picklito Registered User Join Date: Sep 2013 Location: Vacaville CA Posts: 490	Re: Rear axle U-bolts torque specs? Mine are at 140 ft-lbs and those rear wheels are still back there.



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