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#1 |
Registered User
Join Date: Sep 2010
Location: Boondox, AL
Posts: 41
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How does the factory rear bar mount? Is it bolted to the axle tubes and frame as i have seen on other vehicles? If I could get my hands on a factory bar how easy would it be to put it on my 87 R10? Any pics or info would be greatly appreciated. Thanks
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#2 |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Rear Sway Bar
The only "factory" rear sway bar came on 73-87 C30 dually pickups and on some 73-80 C30 single rear wheel trucks with the camper special package. No other 73-87 model was available with a rear sway bar from the the factory.
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#3 |
Registered User
Join Date: Sep 2010
Location: Boondox, AL
Posts: 41
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Re: Factory Rear Sway Bar
Thanks for the reply. If I found one would it just bolt on or would I have to fab brackets?
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#4 | |
72 BB C30 Super LongHorn
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![]() Quote:
What all do I need?
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#5 |
Registered User
Join Date: Sep 2010
Location: Boondox, AL
Posts: 41
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Re: Factory Rear Sway Bar
Does sound like it would be less of a headache to just go aftermarket. From what I have read it also seems to be difficult to find a factory setup (kinda makes me want a factory bar more). Is there a company that sells the square u-bolts?
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#6 |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Rear Sway Bar
Anyone who builds springs makes ubolts. You can even buy them from napa.
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#7 |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Rear Sway Bar
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#8 |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Rear Sway Bar
If you found one from a C30 you would need to replace your ubolts with the square style, opposite position of the round one and add the axle plates like a 1 ton has on the bottom of the axle. It would be much easier to install a new hellwig rear sway bar than try and install one from a c30...IMO.
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#9 |
Registered User
Join Date: Jun 2010
Location: Pittsburg, KS
Posts: 953
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Re: Factory Rear Sway Bar
A rear sway bar off of a c30 will not fit on a c10/20 because the spring pads are mounted closer together on a c30 than on a c10/20. You won't be able to adapt a c30 rear sway bar easy at all so it is best to go with an aftermarket.
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#10 |
Registered User
Join Date: Sep 2010
Location: Boondox, AL
Posts: 41
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Re: Factory Rear Sway Bar
Found a rear bar at pull-a-part yesterday evening. Got lucky someone had already taken the rearend and just left the sway bar hanging by the end links. Got the bar, u-bolt brackets, and round spacers that go between the u-bolt bracket and plate for 28 bucks. Didnt realize the springs were closer together on a C30. I guess I will have to knock the dust off of the old tape measure today and see if it will work on my truck. If not I made the trip worthwhile by grabbing a beefy 1.25'' front bar also!! Are the u-bolt plates the same on a C30 and C10?
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#11 |
Registered User
Join Date: Feb 2012
Location: Clarksville, TN
Posts: 41
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Re: Factory Rear Sway Bar
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#12 |
72 BB C30 Super LongHorn
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I found this image online for the 1-ton trucks.
I believe that there are 2 different dually rear axle widths. Ive wanted to do this to my C/20 and have seen a few trucks using this.
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#13 |
72 BB C30 Super LongHorn
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Location: Chavez Ravine
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Re: Factory Rear Sway Bar
Can someone post a good image for the 10-bolt truck rear sway bar; Factory & aftermarket?
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#14 |
Registered User
Join Date: Sep 2010
Location: Boondox, AL
Posts: 41
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Re: Factory Rear Sway Bar
I will try and post pics as soon as I get new bushings and find some u-bolts and u-bolt plates.
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#15 |
Registered User
Join Date: Dec 2011
Location: Arlington WA
Posts: 1,728
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Re: Factory Rear Sway Bar
i saw a rear sway bar on a g20 van and the pick n pull today that i am temted to get. let us now how it handles after you put the bars on
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#16 |
Registered User
Join Date: Jun 2009
Location: Oroville, CA
Posts: 4,827
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Re: Factory Rear Sway Bar
I parted a 77 K10 and it had a rear sway bar, but it was missing the bracket to the axle.
It looked factory. Maybe it was retrofit years ago. |
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#17 |
Next!
Join Date: Jan 2003
Location: Eastern Pa.
Posts: 2,480
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Re: Factory Rear Sway Bar
Factory parts book showing rear sway bar
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#18 |
Happy to be here
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Location: Cypress, TX
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Re: Factory Rear Sway Bar
Are you showing that for reference? It looks to be the breakdown for a C/K 30 DRW assembly. AFAIK GM never offered a rear sway bar on a C10 truck.
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#19 | |
72 BB C30 Super LongHorn
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Re: Factory Rear Sway Bar
Quote:
Would the 3/4 C/20 Trucks use the same C/30 sway bar we all have shared above? It would be cool if there was a GM drawing showing the 1/2 ton units. This thread still needs to work towards showing what a 1/2 ton C/10 would get. ![]()
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#20 | |
Next!
Join Date: Jan 2003
Location: Eastern Pa.
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Re: Factory Rear Sway Bar
Quote:
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#21 |
72 BB C30 Super LongHorn
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Re: Factory Rear Sway Bar
Can you share a pic with us how it looks installed on your truck?
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#22 |
Registered User
Join Date: Feb 2011
Location: newcastle texas
Posts: 41
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Re: Factory Rear Sway Bar
Do suburbans run a rear sway bar that will work on a half ton?
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#23 |
Moderator
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Re: Factory Rear Sway Bar
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#24 |
72 BB C30 Super LongHorn
![]() Join Date: Nov 2002
Location: Chavez Ravine
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Re: Factory Rear Sway Bar
Found an AfterMarket ADDCO rear sway bar for 73 & up trucks.
Not sure if it is still available. hope its useful... ADDCO #020-202 1'' Rear Sway Bar 1973-91 Blazer 2WD/C-10/C-20 1973-91 Blazer K10 4WD/2DR Tahoe/Yukon 1973-91 Blazer K20, K30 4WD 1973-91 Suburban/Yukon XL 4WD/1500 1973-96 Suburban/Yukon XL 4WD/2500/3500 1973-87 C10/C20/C30 2WD/4WD http://www.jegs.com/i/ADDCO/020/202/10002/-1 ADDCO : http://www.addco.net/aftermarket.htm ADDCO Distributors (per their website) http://02bbfb5.netsolhost.com/distributors.htm
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#25 |
SWB 4x4 Collector
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Location: Osage City, KS
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Re: Factory Rear Sway Bar
Bringing back up an old thread, but there is also the mid to late 70's 3/4 ton rear sway bar that should work on 1/2 tons and 3/4 tons. It was an option on the Camper Edition 3/4 tons. It has a cast piece that wraps around the bottom side of the axle and is held by round ubolts instead of the squared ones. It would have the correct width of the 42.5" spring pad spacing width vs the 40.5" 1 ton spacing.
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