Factory Rear Sway Bar

[BadCompany]

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

[86454k30]

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.

[BadCompany]

Thanks for the reply. If I found one would it just bolt on or would I have to fab brackets?

[86454k30]

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.

[RPOZ11]

Originally Posted by 86454k30

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.

I really wanted to do that to my C/20!
What all do I need?

[BadCompany]

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?

[86454k30]

Originally Posted by RPOZ11

I really wanted to do that to my C/20!
What all do I need?

Find a c30 and take the rear sway bar, brackets that attach sway bar to ubolts and ubolt plates.

[86454k30]

Originally Posted by BadCompany

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?

Anyone who builds springs makes ubolts. You can even buy them from napa.

[Mattman2010]

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.
Posted via Mobile Device

[BadCompany]

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?

[crewcabsquared]

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[RPOZ11]

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.

[RPOZ11]

Can someone post a good image for the 10-bolt truck rear sway bar; Factory & aftermarket?

[BadCompany]

I will try and post pics as soon as I get new bushings and find some u-bolts and u-bolt plates.

[cory d]

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

[KrazyRay]

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.

[GM72K10]

Factory parts book showing rear sway bar

[N2TRUX]

Originally Posted by GM72K10

Factory parts book showing 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.

[RPOZ11]

Originally Posted by N2TRUX

Are you showing that for reference? It looks to be the breakdown for a C/K 30 DRW assembly.

It shows the R3, C3, & V3...denoting the 30 series applicaion.

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.

[GM72K10]

Originally Posted by N2TRUX

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.

Just for reference I happen to have that set up in my k30 dually cucv
Posted via Mobile Device

[RPOZ11]

Originally Posted by GM72K10

Just for reference I happen to have that set up in my k30 dually cucv
Posted via Mobile Device

Can you share a pic with us how it looks installed on your truck?

[GM72K10]

Originally Posted by RPOZ11

Can you share a pic with us how it looks installed on your truck?

On an 86 K30 CUCV with a dually Dana 70 rear. Truck needs to be cleaned underneath!

[East End K5]

anybody notice a difference with the sway bar added?

[RPOZ11]

what do you guys think of this?

[77BBGMC]

Originally Posted by East End K5

anybody notice a difference with the sway bar added?

Yes, more than I expected. Mines a half ton with an aftermarket rear bar.