Rear sway bar pic for 4x4 3/4 ton and 1 ton 2wd - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rod · 04-17-2005, 09:45 PM

Thought I'd show what a rear sway bar and how it hooks up to a leaf spring lower spring bracket...it's a rare piece. The frame bracket little clips aren't shown...but they just hook to the bottom of the frame rail....almost look like the front sway bar style hanging bracket. There are brackets that mount to the bottom of leaf spring brackets...which the bar slides into rubber bushing in those brackets.

Got digging into a stash of parts I had.

**special-K** · 04-18-2005, 09:40 AM

That`s factory?I did not know that.Thank you very much.

1969 GMC · 04-18-2005, 09:41 AM

I must say I don't believe that is factory. But stranger things have happened.

Rod · 04-18-2005, 11:57 AM

Well...factory yes...but from what is the question? It's all part of what fits what.

Chris H · 04-18-2005, 12:00 PM

Factory rear sway bars were available on 73 and newer trucks.
I have mostly seen them on 1 ton Camper Specials.
I have never seen a factory installed on 67-72, but I haven't seen everything...

Rod · 04-18-2005, 12:30 PM

Well this came off a 64.

BobS · 04-18-2005, 12:56 PM

If you look in the service manuals you will see that rear sway bars were available on P30 Forward Control models, I'm looking for one if anyone happens to find one.

Bob

Rod · 04-18-2005, 01:29 PM

And BobS got it right it came off a P30.

**special-K** · 04-18-2005, 07:03 PM

Hey,trick question.Wah-wah-wah.I had one on my`78 Dually CamperSpecial.

Rod · 04-19-2005, 06:55 AM

Good stuff...but is it the same width ..might be since its a dually. And how did it mount to the axle....the axle ubolt brackets are a different style.

4x4Poet · 04-23-2005, 04:15 AM

If, on a 67-72 4x4, one uses 73up u-bolt plates (top of spring pack) with appropriate u-bolts (wrap under axle), would the 78 1 ton dually ubolt plates/brackets work to affix the ends of the 78 swaybar to the axle? Leaving only the fabbing of frame mounting brackets?

Longhorn Man · 04-23-2005, 06:48 AM

I almost had my hands on one of them...off a 68 P-30.
If I ever get the chance again, you'd better believe I'll grab it.

67-72williso · 04-23-2005, 07:48 AM

Rod, I got one to it came off a 72 P30 Motor Home Chassis. That thing was a boat it had everything kitchen sink, bathroom, the works. It also had a weird brake system with a assist stuff on the frame. Does anyone make a urthane bushings for this set-up?

Later Willis

Huck · 04-23-2005, 07:45 AM

Nothing quite like a rare piece--and the older you get, every piece is rare!

4x4Poet · 04-24-2005, 04:09 AM

Quote:

Originally Posted by 67-72williso

...Does anyone make a urthane bushings for this set-up?

Wouldn't generic poly sway bar bushings work? Like from Energy Suspension:
End link bushings
Frame bushings

Quote:

Originally Posted by Huck

Nothing quite like a rare piece--and the older you get, every piece is rare!

Am I the only one that got this?

Rod · 04-24-2005, 05:39 PM

When you get into the rear diff that has the ten bolt wheel stud pattern your talking the H110 differential. Those diffs had an assist brake sysytem that had vacuum pods mounted to the frame rails on each side. There is one like that about 30 miles from me and about once a year I go see him...I'll try to rememeber to take pics next time I go there. Its a 72 (I think), but it is 1 ton dually 157 inch wheel base with 6.17 geared rear end ratio.

**PICKMUP** · 04-25-2005, 12:56 AM

This is a late 70's-80's dually rear sway bar that I put on my 70 GMC 3/4T.

69 Short Fleet · 04-25-2005, 01:48 AM

Rod. Thanks for sharing, whats the dia. of that bar 1 1/8" ? (it does not look like a 1 1/4 from the pic) And (just to make things more complicated, LOL) were they available in different dia.? Like 7/8", 1 1/8", 1 1/4". Doug

Brewski* · 04-25-2005, 08:59 AM

Has anyone used or seen these sway bars installed? They look like a great bolt on product fo our trucks. Suspension Connection

Rod · 04-25-2005, 10:24 AM

The sway bar I posted a pic of in the beginning of the thread is 1 inch.

Pickmup ..that sway bar you installed.....is it on a dually rear diff housing even though on a 3/4 ton? The bottom mounting purchase is what I am asking about or are they there on some diffs. Or did you have that welded on?

**PICKMUP** · 04-25-2005, 11:49 AM

The sway bar came off a 1 ton 2wd (but, same one is also on my 79 dually).
I put it on my 70 GMC 3/4T single wheel truck.
The rear brackets, under the diff bolt on and are held by the ubolts.
The frame brackets, at the front of the bar, are bed mounts off one of our truck frames...welded on.

4x4Poet · 04-26-2005, 03:07 AM

Brewski, I'm leary of the *Fast, Easy "Bolt-On" installation* claim. The pic shows nothing, the sales pitch makes no mention of the fact that most 4x4 67-72s don't have swaybar mount locations on the frame or the axle/u-bolt plates, and Bolt-on is in both bold and italics. Makes me think of over-emphasized air quotes.

Brewski* · 04-26-2005, 12:04 PM

4x4Poet: "I'm leary of the *Fast, Easy "Bolt-On" installation* claim also. Like you say the pic shows nothing, the sales pitch makes no mention of the fact that most 4x4 67-72s don't have swaybar mount locations on the frame or the axle. But these are HELLWIG products http://www.hellwigproducts.com/antis...tic4x4_gm.html which have been around forever and have been OEM on most Big Rigs and with 1 & 1/8" bars they should be rock solid in the corners. I have e-mailed HELLWIG directly and ask for the BOLT ON installation instructions. I will start another post when I get some.

Brewski* · 04-26-2005, 01:40 PM

Here is how the Hellwig hooks up sounds pretty good?

front bar # 7431 mounts on crossmember we supply and arms on top of the
vehicles springs all mounting hardware is included in our kit, rear bar #
7413 in front of the axle with arms towards the front of the vehicle again
all mounting hardware is included in the kit as far as the suburban these
kits will not fit, we do not offer any kits for this year only 1973 and up
thanks Gilbert
----- Original Message -----
From: "Bruce Kohen" <speed@blading.com>
To: <customerservice@hellwigproducts.com>
Sent: Tuesday, April 26, 2005 9:08 AM

> Hello Hellwig,
>
> I am interested in your 67-72 K10 & K20 Pickup 7431 1-1/8" 7413 1-1/8"
"Bolt on" package. I do need to know how they bolt on as there are no stock
mounts for these year trucks. I also need to know if they fit on the K20 and
K10 Suburban of this era. If you can scan some instructions and send them to
me that would be fantastic. Or, they can be shipped to:
> SS CUSTOMSS
> 27541 Happy Terrace
> Rocky Mount, MO 65072
>
> Thanks,
> Bruce Kohen
> Owner
> --

Rod · 04-27-2005, 10:22 AM

Quote:

Originally Posted by Brewski*

Here is how the Hellwig hooks up sounds pretty good?

front bar # 7431 mounts on crossmember we supply and arms on top of the
vehicles springs all mounting hardware is included in our kit, rear bar #
7413 in front of the axle with arms towards the front of the vehicle again
all mounting hardware is included in the kit as far as the suburban these
kits will not fit, we do not offer any kits for this year only 1973 and up
thanks Gilbert
----- Original Message -----
From: "Bruce Kohen" <speed@blading.com>
To: <customerservice@hellwigproducts.com>
Sent: Tuesday, April 26, 2005 9:08 AM

> Hello Hellwig,
>
> I am interested in your 67-72 K10 & K20 Pickup 7431 1-1/8" 7413 1-1/8"
"Bolt on" package. I do need to know how they bolt on as there are no stock
mounts for these year trucks. I also need to know if they fit on the K20 and
K10 Suburban of this era. If you can scan some instructions and send them to
me that would be fantastic. Or, they can be shipped to:
> SS CUSTOMSS
> 27541 Happy Terrace
> Rocky Mount, MO 65072
>
> Thanks,
> Bruce Kohen
> Owner
> --

I read it that it does not fit the rear. But they have a front kit.

04-17-2005, 09:45 PM	#1
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Rear sway bar pic for 4x4 3/4 ton and 1 ton 2wd Thought I'd show what a rear sway bar and how it hooks up to a leaf spring lower spring bracket...it's a rare piece. The frame bracket little clips aren't shown...but they just hook to the bottom of the frame rail....almost look like the front sway bar style hanging bracket. There are brackets that mount to the bottom of leaf spring brackets...which the bar slides into rubber bushing in those brackets. Got digging into a stash of parts I had. Attached Images __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

04-18-2005, 09:40 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	That`s factory?I did not know that.Thank you very much. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

04-18-2005, 09:41 AM	#3
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	I must say I don't believe that is factory. But stranger things have happened. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

04-18-2005, 11:57 AM	#4
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Well...factory yes...but from what is the question? It's all part of what fits what. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

04-18-2005, 12:00 PM	#5
Chris H 72 C30 Trailer Queen Join Date: Dec 1999 Location: SE MN, USA Posts: 794	Factory rear sway bars were available on 73 and newer trucks. I have mostly seen them on 1 ton Camper Specials. I have never seen a factory installed on 67-72, but I haven't seen everything... __________________ Chris H 72 C30 133" 72 C30 157" flat-dump 69 C10 short fleet 71 ElCamino 2000 K2500 crewcab shortbed (sold, sorry old friend) 2005 GMC 2500HD shortcrew Duramax 2006 K1500 RCSB and a couple other projects/parts Last edited by Chris H; 04-18-2005 at 12:19 PM.

04-18-2005, 12:30 PM	#6
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Well this came off a 64. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

04-18-2005, 12:56 PM	#7
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	If you look in the service manuals you will see that rear sway bars were available on P30 Forward Control models, I'm looking for one if anyone happens to find one. Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

04-18-2005, 01:29 PM	#8
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	And BobS got it right it came off a P30.

04-18-2005, 07:03 PM	#9
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Hey,trick question.Wah-wah-wah.I had one on my`78 Dually CamperSpecial. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

04-19-2005, 06:55 AM	#10
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Good stuff...but is it the same width ..might be since its a dually. And how did it mount to the axle....the axle ubolt brackets are a different style.

04-23-2005, 04:15 AM	#11
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	If, on a 67-72 4x4, one uses 73up u-bolt plates (top of spring pack) with appropriate u-bolts (wrap under axle), would the 78 1 ton dually ubolt plates/brackets work to affix the ends of the 78 swaybar to the axle? Leaving only the fabbing of frame mounting brackets? __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

04-23-2005, 06:48 AM	#12
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	I almost had my hands on one of them...off a 68 P-30. If I ever get the chance again, you'd better believe I'll grab it.

04-23-2005, 07:48 AM	#13
67-72williso Junk/Daily Driver Club Join Date: Feb 2004 Location: Manheim, PA 17545 Posts: 253	Rear sway bar Rod, I got one to it came off a 72 P30 Motor Home Chassis. That thing was a boat it had everything kitchen sink, bathroom, the works. It also had a weird brake system with a assist stuff on the frame. Does anyone make a urthane bushings for this set-up? Later Willis __________________ Daily Driver: 1970 C-20 400 sbc,sm-465,Dana 61 one ton SRW rear, 3.07 gears, locker. There are three kinds of people: those who make things happen, those who watch things happen, and those who have no idea what happened! Last edited by 67-72williso; 04-23-2005 at 07:57 AM.

04-23-2005, 07:45 AM	#14
Huck Senior Member Join Date: Jun 2001 Location: Shelbyville, KY Posts: 3,261	Nothing quite like a rare piece--and the older you get, every piece is rare!

04-24-2005, 05:39 PM	#16
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	When you get into the rear diff that has the ten bolt wheel stud pattern your talking the H110 differential. Those diffs had an assist brake sysytem that had vacuum pods mounted to the frame rails on each side. There is one like that about 30 miles from me and about once a year I go see him...I'll try to rememeber to take pics next time I go there. Its a 72 (I think), but it is 1 ton dually 157 inch wheel base with 6.17 geared rear end ratio. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.



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04-25-2005, 12:56 AM	#17
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,158	This is a late 70's-80's dually rear sway bar that I put on my 70 GMC 3/4T. Attached Images __________________ Email: frankeham@comcast.net Phone: 360-956-7170

04-25-2005, 01:48 AM	#18
69 Short Fleet Registered User Join Date: Nov 2002 Location: Kelowna B.C. Canada Posts: 1,086	Rod. Thanks for sharing, whats the dia. of that bar 1 1/8" ? (it does not look like a 1 1/4 from the pic) And (just to make things more complicated, LOL) were they available in different dia.? Like 7/8", 1 1/8", 1 1/4". Doug

04-25-2005, 08:59 AM	#19
Brewski* Registered User Join Date: Aug 2001 Location: Rocky Mount, MO Posts: 1,293	Has anyone used or seen these sway bars installed? They look like a great bolt on product fo our trucks. Suspension Connection

04-25-2005, 10:24 AM	#20
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	The sway bar I posted a pic of in the beginning of the thread is 1 inch. Pickmup ..that sway bar you installed.....is it on a dually rear diff housing even though on a 3/4 ton? The bottom mounting purchase is what I am asking about or are they there on some diffs. Or did you have that welded on?

04-25-2005, 11:49 AM	#21
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,158	The sway bar came off a 1 ton 2wd (but, same one is also on my 79 dually). I put it on my 70 GMC 3/4T single wheel truck. The rear brackets, under the diff bolt on and are held by the ubolts. The frame brackets, at the front of the bar, are bed mounts off one of our truck frames...welded on. __________________ Email: frankeham@comcast.net Phone: 360-956-7170

04-26-2005, 03:07 AM	#22
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	Brewski, I'm leary of the Fast, Easy "Bolt-On" installation claim. The pic shows nothing, the sales pitch makes no mention of the fact that most 4x4 67-72s don't have swaybar mount locations on the frame or the axle/u-bolt plates, and Bolt-on is in both bold and italics. Makes me think of over-emphasized air quotes. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

04-26-2005, 12:04 PM	#23
Brewski* Registered User Join Date: Aug 2001 Location: Rocky Mount, MO Posts: 1,293	4x4Poet: "I'm leary of the Fast, Easy "Bolt-On" installation claim also. Like you say the pic shows nothing, the sales pitch makes no mention of the fact that most 4x4 67-72s don't have swaybar mount locations on the frame or the axle. But these are HELLWIG products http://www.hellwigproducts.com/antis...tic4x4_gm.html which have been around forever and have been OEM on most Big Rigs and with 1 & 1/8" bars they should be rock solid in the corners. I have e-mailed HELLWIG directly and ask for the BOLT ON installation instructions. I will start another post when I get some.

04-26-2005, 01:40 PM	#24
Brewski* Registered User Join Date: Aug 2001 Location: Rocky Mount, MO Posts: 1,293	Here is how the Hellwig hooks up sounds pretty good? front bar # 7431 mounts on crossmember we supply and arms on top of the vehicles springs all mounting hardware is included in our kit, rear bar # 7413 in front of the axle with arms towards the front of the vehicle again all mounting hardware is included in the kit as far as the suburban these kits will not fit, we do not offer any kits for this year only 1973 and up thanks Gilbert ----- Original Message ----- From: "Bruce Kohen" <speed@blading.com> To: <customerservice@hellwigproducts.com> Sent: Tuesday, April 26, 2005 9:08 AM > Hello Hellwig, > > I am interested in your 67-72 K10 & K20 Pickup 7431 1-1/8" 7413 1-1/8" "Bolt on" package. I do need to know how they bolt on as there are no stock mounts for these year trucks. I also need to know if they fit on the K20 and K10 Suburban of this era. If you can scan some instructions and send them to me that would be fantastic. Or, they can be shipped to: > SS CUSTOMSS > 27541 Happy Terrace > Rocky Mount, MO 65072 > > Thanks, > Bruce Kohen > Owner > --

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