trailing arms question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wv panel · 11-03-2008, 02:09 PM

I'm planning on replacing the trailing arms on my 64 C 10. Does anyone know the size of the U bolts located at the rear othe arms? Where is the best place to purchase new, bushings,bolts, etc. ? Thanks

custom63 · 11-03-2008, 04:03 PM

What are you replacing the trailing arms with? I ask cuz Early Classic Enterprises (ECE) sells after market beefed up rear trailing arm replacment kits that come with everything you need. Check them out see what ya think. They also just sell replacement bushings too.

http://www.earlyclassic.com/home.aspx

kizer · 11-03-2008, 06:16 PM

Quote:

Originally Posted by wv panel

I'm planning on replacing the trailing arms on my 64 C 10. Does anyone know the size of the U bolts located at the rear othe arms? Where is the best place to purchase new, bushings,bolts, etc. ? Thanks

Save them or take good measurements. I ended up buying a pair from Lmctruck.com because
Napa didn't carry them
Autozone didn't carry them
Schucks didn't carry them

They all told me the samething after I cut them off. Oh if you bring in a bolt we can take some measurements. Well they where in the trash since I was cutting things off to strip and paint.

Bushings I bought mine from classicparts.com because well LMC wanted more than I wanted to spend.

suicide 63 · 11-03-2008, 08:46 PM

I found mine at a Fastenal Store for almost 4 dollars for the pair.I believe they are 3/4inch and about 8 in long.

SCOTI · 11-03-2008, 11:55 PM

I had them made @ a local spring shop. I brought in a stock u-bolt & told him I needed it 2" longer on each end (2" lowering blocks). $30 (including new crush nuts & washers); it took the guy about 5 -- 6mins & I was ready to go.

Rollie396 · 11-04-2008, 12:50 AM

What Scoti said,to a tee.
When the fella came back so soon,I figured he had a question....nope,done.

born loser · 11-04-2008, 05:37 PM

This might help:
NAPA U-BOLT SIZE LIST
“ROUND” U-Bolts for round axle tubes
NAPA PART NUMBER THREAD Ø / AXLE TUBE Ø / LEG LENGTH (* SEE NOTE BELOW)
650-4082 3/8*2.0*4.0
650-4079 7/16*2.0*6.0
650-4012 7/16*2.50*6.5
650-4023 7/16*2.75*6.75
650-4026 7/16*2.81*8.0
650-4075 7/16*3.0*7.5
650-4022 7/16*3.12*6.75
650-4076 1/2*2.5*8.25
650-4003 1/2*2.88*7.0
650-4077 1/2*3.0*11.75
650-4028 1/2*3.0*8.0
650-4001 1/2*3.13*6.50
650-4014 1/2*3.25*9.0
650-4002 1/2*3.50*7.50
650-4025 1/2*3.5*8.0
650-4053 9/16*3.0*7.25
650-4078 9/16*3.25*8.0
650-4036 9/16*3.37*7.0
650-4041 9/16*3.37*8.0
650-4034 9/16*3.37*10.0
650-4080 9/16*3.75*8.0
650-4081 9/16*3.75*12.75
650-4044 5/8*3.0*7.5
650-4050 5/8*3.01*8.63
650-4051 5/8*3.0*9.63
650-4052 5/8*3.0*11.63
650-4045 5/8*3.25*8.50
650-4042 5/8*3.25*9.0
650-4038 5/8*3.25*13.0
650-4049 5/8*3.25*8.50
650-4053 5/8*3.50*9.50
650-4054 5/8*3.50*10.50
650-4055 5/8*3.50*11.50
650-4056 5/8*3.63*7.50
650-4057 5/8*3.63*8.50
650-4058 5/8*3.63*9.50
650-4059 5/8*3.63*10.50
650-4060 5/8*3.63*11.50
650-4037 5/8*3.75*8.50
650-4035 5/8*3.75*10.0
650-1050 3/4*3.0*18.0
650-1052 7/8*3.0*14.0
650-1054 7/8*3.5*14.0
650-1055 7/8*5*14.0
650-1056 7/8*3*18.0
650-1057 7/8*3.5*18.0

*NOTE on Leg Length:
Leg length is measured from the end of the threaded leg to the INSIDE bottom of the U

kizer · 11-04-2008, 06:05 PM

I bought these like I mentioned up above and could try and look at the tag that I might have laying around in the garage since it does have the dimensions on it.

*LILRED66* · 11-04-2008, 09:38 PM

Good information guys...thanks for sharing.

joe231 · 11-04-2008, 10:53 PM

nice post loser!!

kizer · 11-04-2008, 10:57 PM

Ok I found the label off the U-bolts.

Exactly what does it mean. Well that is for somebody else to pipe up and say.

Keep in mind that there where 2 washers and 2 nuts connected to this as a package that I bought. The bolts for sure are not 3.5 inches long.

Does that mean 3/4 thick with a 3 1/2 gap between the bolts at 8 1/2 long? If so that sounds about right to me

66trkbldr · 11-06-2008, 03:25 PM

Hey !!!!!!!!! bought a set of rear trailing arms from ebay ! they came from a nascar truck series team ! used of course but thet were only 75.00 for the pair ,same length and they evan fixed my pinion angle with the drop blocks and notch!!!!!!!!!! save the $ of buying repops ! theres normally a pair a week , " truck arm" they look bad a$$ !

SCOTI · 11-06-2008, 03:29 PM

Quote:

Originally Posted by 66trkbldr

Hey !!!!!!!!! bought a set of rear trailing arms from ebay ! they came from a nascar truck series team ! used of course but thet were only 75.00 for the pair ,same length and they evan fixed my pinion angle with the drop blocks and notch!!!!!!!!!! save the $ of buying repops ! theres normally a pair a week , " truck arm" they look bad a$$ !

Put up the e-bay linky.....

kizer · 11-06-2008, 03:59 PM

Yeah at least so we can see what they look like. I searched and didn't come up with anything.

joe231 · 11-06-2008, 05:10 PM

astrochimp · 08-21-2010, 09:05 AM

Does anyone have a online source for these?

Well 2" longer ones, so I can add lowering blocks.

David

tapeworm · 08-21-2010, 10:22 AM

Quote:

Originally Posted by astrochimp

Does anyone have a online source for these?

Well 2" longer ones, so I can add lowering blocks.

David

Nothing I know of online

However, most spring shops will make them however you want.

I had a set made up while I waited; price was reasonable too.

63sbssbbw · 08-27-2010, 12:13 PM

for Kizer
3/4 = rod dia.
3 1/2 = width ( at inside of legs)
8 1/2 = height ( from inside of arc to end of leg)
Thread should be 3/4-16 fine.
with matching high nuts(which you have) but i don't see the split lock washers that you'll need
T

CVA59 · 08-27-2010, 01:02 PM

Mine came in yesterday from http://www.classicparts.com/. They were 12.00 i piece i think. They fit perfectly. I would say that is the way to go.

SCOTI · 08-27-2010, 01:22 PM

Quote:

Originally Posted by CVA59

Mine came in yesterday from http://www.classicparts.com/. They were 12.00 i piece i think. They fit perfectly. I would say that is the way to go.

Were yours for leaf or coil suspension? Leaf u-bolts are typically cheaper because they're smaller.

**Captainfab** · 08-28-2010, 12:22 AM

Split lock wshers aren't typically used under U-bolt nuts. Heavy SAE flat washers are what I normally receive with new U-bolts. When torqued properly, they won't come loose.

Quote:

Originally Posted by 63sbssbbw

for Kizer
3/4 = rod dia.
3 1/2 = width ( at inside of legs)
8 1/2 = height ( from inside of arc to end of leg)
Thread should be 3/4-16 fine.
with matching high nuts(which you have) but i don't see the split lock washers that you'll need
T

63sbssbbw · 08-28-2010, 06:05 AM

Okay,thanks cpt fab
The ones I just took out must have been cracked(and in more than 1 place)
I just assumed it was a lock washer.
I should have consulted my assy manual before I opened my yap
Sorry 'bout that Kizer
T

**Captainfab** · 08-28-2010, 11:45 PM

No worries here, I just wanted to state what I know. And thanks for posting the dimensions of the U-bolts.

Quote:

Originally Posted by 63sbssbbw

Okay,thanks cpt fab
The ones I just took out must have been cracked(and in more than 1 place)
I just assumed it was a lock washer.
I should have consulted my assy manual before I opened my yap
Sorry 'bout that Kizer
T

astrochimp · 09-11-2010, 08:22 PM

I got a set from my local lumber yard, they had to order them in, they didn't stock any that big. 3/4"- 3.5"- 12"

They are from " Rods Indiana Inc", and 12" long, but threaded enough you could use them for stock (cut off excess).

11-03-2008, 02:09 PM	#1
wv panel Registered User Join Date: Feb 2007 Location: Webster Springs,WV Posts: 10	trailing arms question I'm planning on replacing the trailing arms on my 64 C 10. Does anyone know the size of the U bolts located at the rear othe arms? Where is the best place to purchase new, bushings,bolts, etc. ? Thanks

11-03-2008, 04:03 PM	#2
custom63 Registered User Join Date: Oct 2008 Location: Auburn, Ca. Posts: 171	Re: trailing arms question What are you replacing the trailing arms with? I ask cuz Early Classic Enterprises (ECE) sells after market beefed up rear trailing arm replacment kits that come with everything you need. Check them out see what ya think. They also just sell replacement bushings too. http://www.earlyclassic.com/home.aspx

11-03-2008, 08:46 PM	#4
suicide 63 Registered User Join Date: Nov 2007 Location: peculiar mo Posts: 219	Re: trailing arms question I found mine at a Fastenal Store for almost 4 dollars for the pair.I believe they are 3/4inch and about 8 in long. __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=304940

11-03-2008, 11:55 PM	#5
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,066	Re: trailing arms question I had them made @ a local spring shop. I brought in a stock u-bolt & told him I needed it 2" longer on each end (2" lowering blocks). $30 (including new crush nuts & washers); it took the guy about 5 -- 6mins & I was ready to go. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

11-04-2008, 12:50 AM	#6
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	Re: trailing arms question What Scoti said,to a tee. When the fella came back so soon,I figured he had a question....nope,done. __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics Last edited by Rollie396; 11-04-2008 at 12:51 AM.

11-04-2008, 05:37 PM	#7
born loser Registered User Join Date: Nov 2008 Location: coppell, TX Posts: 8	Re: trailing arms question This might help: NAPA U-BOLT SIZE LIST “ROUND” U-Bolts for round axle tubes NAPA PART NUMBER THREAD Ø / AXLE TUBE Ø / LEG LENGTH (* SEE NOTE BELOW) 650-4082 3/82.04.0 650-4079 7/162.06.0 650-4012 7/162.506.5 650-4023 7/162.756.75 650-4026 7/162.818.0 650-4075 7/163.07.5 650-4022 7/163.126.75 650-4076 1/22.58.25 650-4003 1/22.887.0 650-4077 1/23.011.75 650-4028 1/23.08.0 650-4001 1/23.136.50 650-4014 1/23.259.0 650-4002 1/23.507.50 650-4025 1/23.58.0 650-4053 9/163.07.25 650-4078 9/163.258.0 650-4036 9/163.377.0 650-4041 9/163.378.0 650-4034 9/163.3710.0 650-4080 9/163.758.0 650-4081 9/163.7512.75 650-4044 5/83.07.5 650-4050 5/83.018.63 650-4051 5/83.09.63 650-4052 5/83.011.63 650-4045 5/83.258.50 650-4042 5/83.259.0 650-4038 5/83.2513.0 650-4049 5/83.258.50 650-4053 5/83.509.50 650-4054 5/83.5010.50 650-4055 5/83.5011.50 650-4056 5/83.637.50 650-4057 5/83.638.50 650-4058 5/83.639.50 650-4059 5/83.6310.50 650-4060 5/83.6311.50 650-4037 5/83.758.50 650-4035 5/83.7510.0 650-1050 3/43.018.0 650-1052 7/83.014.0 650-1054 7/83.514.0 650-1055 7/8514.0 650-1056 7/8318.0 650-1057 7/83.518.0 *NOTE on Leg Length: Leg length is measured from the end of the threaded leg to the INSIDE bottom of the U

11-04-2008, 06:05 PM	#8
kizer Its Deja Vu time again Join Date: Aug 2008 Location: Marysville, North of Seattle WA Posts: 815	Re: trailing arms question I bought these like I mentioned up above and could try and look at the tag that I might have laying around in the garage since it does have the dimensions on it. __________________ Its not pretty but its mine to figure out. The build / The Photos / Build Diary Last edited by kizer; 11-04-2008 at 06:11 PM.

11-04-2008, 09:38 PM	#9
LILRED66 Account Suspended Join Date: May 2005 Location: Kansas City, KS Posts: 3,906	Re: trailing arms question Good information guys...thanks for sharing.

11-04-2008, 10:53 PM	#10
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: trailing arms question nice post loser!! __________________ *CHEVY ONLY*

11-04-2008, 10:57 PM	#11
kizer Its Deja Vu time again Join Date: Aug 2008 Location: Marysville, North of Seattle WA Posts: 815	Re: trailing arms question Ok I found the label off the U-bolts. Exactly what does it mean. Well that is for somebody else to pipe up and say. Keep in mind that there where 2 washers and 2 nuts connected to this as a package that I bought. The bolts for sure are not 3.5 inches long. Does that mean 3/4 thick with a 3 1/2 gap between the bolts at 8 1/2 long? If so that sounds about right to me __________________ Its not pretty but its mine to figure out. The build / The Photos / Build Diary Last edited by kizer; 11-04-2008 at 11:04 PM.

11-06-2008, 03:25 PM	#12
66trkbldr LIGHTMUP,BURNMDWN! Join Date: Sep 2007 Location: downers grove il Posts: 110	Re: trailing arms question Hey !!!!!!!!! bought a set of rear trailing arms from ebay ! they came from a nascar truck series team ! used of course but thet were only 75.00 for the pair ,same length and they evan fixed my pinion angle with the drop blocks and notch!!!!!!!!!! save the $ of buying repops ! theres normally a pair a week , " truck arm" they look bad a$$ ! __________________ 64 LWB Chevy " EL DEVILLE" 61 Caddy ambulance 56 Coupe deville 64 Coupe deville 29 Ford roadster

11-06-2008, 03:59 PM	#14
kizer Its Deja Vu time again Join Date: Aug 2008 Location: Marysville, North of Seattle WA Posts: 815	Re: trailing arms question Yeah at least so we can see what they look like. I searched and didn't come up with anything. __________________ Its not pretty but its mine to figure out. The build / The Photos / Build Diary

11-06-2008, 05:10 PM	#15
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: trailing arms question __________________ *CHEVY ONLY*

08-21-2010, 09:05 AM	#16
astrochimp Registered User Join Date: Aug 2009 Location: Unionville Mo. Posts: 217	Re: trailing arms question Does anyone have a online source for these? Well 2" longer ones, so I can add lowering blocks. David

08-27-2010, 12:13 PM	#18
63sbssbbw UCA63 Join Date: Aug 2005 Location: Lloydminster AB Can. Posts: 1,637	Re: trailing arms question for Kizer 3/4 = rod dia. 3 1/2 = width ( at inside of legs) 8 1/2 = height ( from inside of arc to end of leg) Thread should be 3/4-16 fine. with matching high nuts(which you have) but i don't see the split lock washers that you'll need T __________________ member#7816 "63 sb ss bbw 350\350 12 bolt rear Pwr Fr Disc PS tilt '61 GMC in progress '63 GMC to use for parts '90 Chevy Ext cab sbfs 5.7l (current d d)



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08-27-2010, 01:02 PM	#19
CVA59 Registered User Join Date: Nov 2009 Location: Longview, Texas Posts: 775	Re: trailing arms question Mine came in yesterday from http://www.classicparts.com/. They were 12.00 i piece i think. They fit perfectly. I would say that is the way to go. __________________ Zack www.23t.weebly.com _________________________________

08-28-2010, 06:05 AM	#22
63sbssbbw UCA63 Join Date: Aug 2005 Location: Lloydminster AB Can. Posts: 1,637	Re: trailing arms question Okay,thanks cpt fab The ones I just took out must have been cracked(and in more than 1 place) I just assumed it was a lock washer. I should have consulted my assy manual before I opened my yap Sorry 'bout that Kizer T __________________ member#7816 "63 sb ss bbw 350\350 12 bolt rear Pwr Fr Disc PS tilt '61 GMC in progress '63 GMC to use for parts '90 Chevy Ext cab sbfs 5.7l (current d d)

09-11-2010, 08:22 PM	#24
astrochimp Registered User Join Date: Aug 2009 Location: Unionville Mo. Posts: 217	Re: trailing arms question I got a set from my local lumber yard, they had to order them in, they didn't stock any that big. 3/4"- 3.5"- 12" They are from " Rods Indiana Inc", and 12" long, but threaded enough you could use them for stock (cut off excess).

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