Front sway bar diameter - The 1947 - Present Chevrolet & GMC Truck Message Board Network

custom10nut · 10-12-2016, 10:14 PM

Is a factory front sway bar for our trucks 1 1/4 inch? I need to replace my bushings, so I need the right size.

brad_man_72 · 10-12-2016, 11:01 PM

They didn't have factory sway bars 67-72. 73-87 had a couple of different sizes. Measure yours.

LongBox · 10-13-2016, 03:00 AM

Well, my 69 GMC has a factory sway bar. It is mentioned on the SPID. I've been under the truck, and seen it for myself. I will try to find time to put a caliper on it tomorrow to give you the exact OD of this piece, but the rain is coming down pretty heavy right now, so don't hold me to the time.

northern 85 · 10-13-2016, 05:19 AM

Pretty sure the factory bars on 1/2 tons were 1 1/8, mine is from a 80s 1 ton 2wd is 1 1/4

custom10nut · 10-13-2016, 11:01 AM

Mine did come from a 70, I just have to measure it with my calipers. I was just hoping someone would know offhand.

67ChevyRedneck · 10-13-2016, 01:07 PM

It depends. Stock 1/2 tons were 1-1/8" while the 3/4+ ton trucks were 1-1/4". The majority of aftermarket bars are the larger 1-1/4"...

I would measure just to be sure.

The 67-72's absolutely had optional factory sway bars... GM didn't drill holes in the A arms and frame that are a perfect match for sway bar mounting brackets for nothing...

**michael bustamante** · 10-13-2016, 01:23 PM

OEM that ive seen for our era. starts at 7/8"
ive pulled em off square bodys. and they come up to 1 1/4" and they fit just fine

chewychevy67 · 10-13-2016, 01:35 PM

My 67 is a 7/8" stock with a 327 engine.

67ChevyRedneck · 10-13-2016, 02:54 PM

Wow, I didn't remember them being that small (mine has the aftermarket 1-1/4").

That's what makes this forum great.

GASoline71 · 10-13-2016, 03:42 PM

My 1972 GMC C1500 has a factory sway bar that is 1 1/16".

Gary

plastercracker · 10-13-2016, 08:03 PM

i replaced mine from summit racing. just entered year make and model and there they where from moog. i used the rubber ones. think they where 1 1/16? and they only had them in blue. perfect fit

garyd1961 · 10-13-2016, 08:08 PM

Were the Suburban sway bars the same size as the 1/2 ton C10s? I took one off a 1970 Suburban and put it on my 1970 1/2 ton C10.

brad_man_72 · 10-13-2016, 11:58 PM

Oooh I learned something.

ghalperin · 10-14-2016, 12:49 AM

I have a 1 1/16" front bar from a 68 C10 CST. I just got these from eBay, they fit perfect.

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mild68 · 10-14-2016, 01:00 AM

I think if it got power steering it got an antisway bar.
Not saying if it didn't have power steering it couldn't have an antisway bar.

LongBox · 10-14-2016, 02:15 AM

Yep, my 69 does NOT have power steering, and it DOES have the anti sway bar.

**biketopia** · 10-14-2016, 11:18 AM

My 71 has power steering and no sway bar

garyd1961 · 10-14-2016, 06:59 PM

I thought the CST and Cheyenne got a sway bar. I know my Cheyenne Super had one.

custom10nut · 10-14-2016, 07:55 PM

Mystery solved. I got down an measured. Mine is 1 1/8 inch type. I have the new bushings ready to put in.
Does anyone know if there is a rear sway bar.for a C-10 with the trailing arm suspension? The Panhard Bar sort does the same thing, but I've have been told there are sway bars made, which I think would be an improvement

1967GMCC20 · 09-08-2024, 11:15 PM

I need a 1-1/4 for my 67 GMC. So I read I have to drill the locating holes. After driving this truck over 1000mi this year, I can feel the sway, a sway bar and GV overdrive, this truck is ready for winding roads, and long trips.

BROWN 70 · 09-08-2024, 11:55 PM

hi guys, my gmc didnt come with a front bar. I found a 7/8 at the wrecking yard and put it on. it was better. then I found a 1.250 at the yard and put it on. big difference. btw my a arms were drilled.

1967GMCC20 · 09-09-2024, 07:36 AM

Quote:

Originally Posted by BROWN 70

hi guys, my gmc didnt come with a front bar. I found a 7/8 at the wrecking yard and put it on. it was better. then I found a 1.250 at the yard and put it on. big difference. btw my a arms were drilled.

I guess I need to go junk yard crawling. Had 2 guys locally looking for sway bar set-up, found nothing.

**A1971Blazer** · 09-09-2024, 07:54 AM

I have a spare sway bar that was on my '67 c10 when I bought it. It was on the SPID so I'm sure it was factory.
I just went to the garage and measured it. It measures 1-1/16" diameter and has the brackets that bolt directly to the lower A-arms, no links like the aftermarket ones.

1967GMCC20 · 09-09-2024, 08:22 AM

Quote:

Originally Posted by A1971Blazer

I have a spare sway bar that was on my '67 c10 when I bought it. It was on the SPID so I'm sure it was factory.
I just went to the garage and measured it. It measures 1-1/16" diameter and has the brackets that bolt directly to the lower A-arms, no links like the aftermarket ones.

Do you know if it bolts up to a C20. 2wd. Or do I need the 1-1/4in.
I wonder if angle from frame to A Frame is different?

10-12-2016, 10:14 PM	#1
custom10nut Registered User Join Date: Apr 2015 Location: East Tn (In the heart of the Smoky Mtns) Posts: 1,883	Front sway bar diameter Is a factory front sway bar for our trucks 1 1/4 inch? I need to replace my bushings, so I need the right size.

10-12-2016, 11:01 PM	#2
brad_man_72 the boat guy Join Date: Jul 2007 Location: springfield mo Posts: 2,339	Re: Front sway bar diameter They didn't have factory sway bars 67-72. 73-87 had a couple of different sizes. Measure yours. __________________ 67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project,

10-13-2016, 03:00 AM	#3
LongBox Registered User Join Date: Sep 2016 Location: Vancouver BC Posts: 784	Re: Front sway bar diameter Well, my 69 GMC has a factory sway bar. It is mentioned on the SPID. I've been under the truck, and seen it for myself. I will try to find time to put a caliper on it tomorrow to give you the exact OD of this piece, but the rain is coming down pretty heavy right now, so don't hold me to the time. __________________ Rick -69 GMC 910 Long Box, 350 -98 Chev Silverado 1500, 350 Vortec 4L60e -08 Mustang GT Convertible

10-13-2016, 05:19 AM	#4
northern 85 Registered User Join Date: Mar 2005 Location: Fairfield Maine Posts: 1,759	Re: Front sway bar diameter Pretty sure the factory bars on 1/2 tons were 1 1/8, mine is from a 80s 1 ton 2wd is 1 1/4

10-13-2016, 11:01 AM	#5
custom10nut Registered User Join Date: Apr 2015 Location: East Tn (In the heart of the Smoky Mtns) Posts: 1,883	Re: Front sway bar diameter Mine did come from a 70, I just have to measure it with my calipers. I was just hoping someone would know offhand.

10-13-2016, 01:07 PM	#6
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Front sway bar diameter It depends. Stock 1/2 tons were 1-1/8" while the 3/4+ ton trucks were 1-1/4". The majority of aftermarket bars are the larger 1-1/4"... I would measure just to be sure. The 67-72's absolutely had optional factory sway bars... GM didn't drill holes in the A arms and frame that are a perfect match for sway bar mounting brackets for nothing... __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

10-13-2016, 01:23 PM	#7
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,857	Re: Front sway bar diameter OEM that ive seen for our era. starts at 7/8" ive pulled em off square bodys. and they come up to 1 1/4" and they fit just fine __________________ 1967custom

10-13-2016, 01:35 PM	#8
chewychevy67 Registered User Join Date: Jan 2010 Location: Here Posts: 5,539	Re: Front sway bar diameter My 67 is a 7/8" stock with a 327 engine.

10-13-2016, 02:54 PM	#9
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Front sway bar diameter Wow, I didn't remember them being that small (mine has the aftermarket 1-1/4"). That's what makes this forum great. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

10-13-2016, 08:03 PM	#11
plastercracker Registered User Join Date: Mar 2015 Location: Conneaut Township Posts: 98	Re: Front sway bar diameter i replaced mine from summit racing. just entered year make and model and there they where from moog. i used the rubber ones. think they where 1 1/16? and they only had them in blue. perfect fit

10-13-2016, 08:08 PM	#12
garyd1961 Registered User Join Date: May 2016 Location: Henderson NC Posts: 975	Re: Front sway bar diameter Were the Suburban sway bars the same size as the 1/2 ton C10s? I took one off a 1970 Suburban and put it on my 1970 1/2 ton C10.

10-13-2016, 11:58 PM	#13
brad_man_72 the boat guy Join Date: Jul 2007 Location: springfield mo Posts: 2,339	Re: Front sway bar diameter Oooh I learned something. __________________ 67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project,

10-14-2016, 12:49 AM	#14
ghalperin Registered User Join Date: Jul 2016 Location: Newport Heights, CA Posts: 1,000	Re: Front sway bar diameter I have a 1 1/16" front bar from a 68 C10 CST. I just got these from eBay, they fit perfect. __________________ Glenn 1960 Burro Corvair/VW Buggy - Factory made in Santa Ana, Ca 1929 Ford Model A Roadster - traditional pre-war banger hot rod

10-14-2016, 01:00 AM	#15
mild68 Registered User Join Date: Dec 2015 Location: Normal, Il. Posts: 110	Re: Front sway bar diameter I think if it got power steering it got an antisway bar. Not saying if it didn't have power steering it couldn't have an antisway bar. __________________ my next project 68 step side 5.3 S10 build thread My 68 Chevelle SS396

10-14-2016, 02:15 AM	#16
LongBox Registered User Join Date: Sep 2016 Location: Vancouver BC Posts: 784	Re: Front sway bar diameter Yep, my 69 does NOT have power steering, and it DOES have the anti sway bar. __________________ Rick -69 GMC 910 Long Box, 350 -98 Chev Silverado 1500, 350 Vortec 4L60e -08 Mustang GT Convertible



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10-14-2016, 11:18 AM	#17
biketopia Senior Member Join Date: Jul 2015 Location: Warrenton VA Posts: 1,100	Re: Front sway bar diameter My 71 has power steering and no sway bar __________________ 71 c-10 Long Bed, under the knife for a No Limit Engineering Wide Ride Chassis Pack and coil over static drop. 07 Silverado Classic 2wd 95 Camaro 427SBC/TH350

10-14-2016, 06:59 PM	#18
garyd1961 Registered User Join Date: May 2016 Location: Henderson NC Posts: 975	Re: Front sway bar diameter I thought the CST and Cheyenne got a sway bar. I know my Cheyenne Super had one.

10-14-2016, 07:55 PM	#19
custom10nut Registered User Join Date: Apr 2015 Location: East Tn (In the heart of the Smoky Mtns) Posts: 1,883	Re: Front sway bar diameter Mystery solved. I got down an measured. Mine is 1 1/8 inch type. I have the new bushings ready to put in. Does anyone know if there is a rear sway bar.for a C-10 with the trailing arm suspension? The Panhard Bar sort does the same thing, but I've have been told there are sway bars made, which I think would be an improvement

09-08-2024, 11:15 PM	#20
1967GMCC20 Registered User Join Date: Apr 2022 Location: Medina, Ohio Posts: 224	Re: Front sway bar diameter I need a 1-1/4 for my 67 GMC. So I read I have to drill the locating holes. After driving this truck over 1000mi this year, I can feel the sway, a sway bar and GV overdrive, this truck is ready for winding roads, and long trips.

09-08-2024, 11:55 PM	#21
BROWN 70 Registered User Join Date: Aug 2010 Location: central oregon Posts: 157	Re: Front sway bar diameter hi guys, my gmc didnt come with a front bar. I found a 7/8 at the wrecking yard and put it on. it was better. then I found a 1.250 at the yard and put it on. big difference. btw my a arms were drilled.

09-09-2024, 07:54 AM	#23
A1971Blazer Senior Member Join Date: Nov 2013 Location: East Tennessee Posts: 2,188	Re: Front sway bar diameter I have a spare sway bar that was on my '67 c10 when I bought it. It was on the SPID so I'm sure it was factory. I just went to the garage and measured it. It measures 1-1/16" diameter and has the brackets that bolt directly to the lower A-arms, no links like the aftermarket ones. __________________ 1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer .............

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