55.2-59 driver control arm 1956 chevy 3200 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Hcb3200** · 12-14-2021, 11:05 PM

is there a replacement for the driver side control arm? we snapped one in half in a parking lot at least and not on road. Need a replacement. But cannot seem to find one on the big online guys. I have two brand new sets of tie rods and tie rod ends but no arms for the trucks. car arms everywhere it seems.

**mr48chev** · 12-15-2021, 04:00 AM

What suspension do you have?

Stock 56 3200 does not have "control arms" Or what are you calling a "control Arm"?

**Hcb3200** · 12-15-2021, 09:48 AM

Stock steering linkages
disk brakes
Power steering cpp 400 with stock drag link.

this arm

**paulspickupparts** · 12-15-2021, 11:12 AM

Not sure what you have going on here but is your steering arm rubbing the inside of the tire ? I might have one but you may need to address why it cracked and broke. Very uncommon . A pothole should never have done this or we would all be in the ditch . Also there appears to be some of your spindle exposed in the wheel bearing area. Maybe its just the photo I hope.

**Hcb3200** · 12-15-2021, 11:32 AM

the rub is from hard parking lot turns where the tire gets to the drag link. Running wider tires. it does not rub in normal operation.

Multiple items contributed to the break (lucky in parking lot)
1 - age (and unknown wear we are not the first owners)
2 - hub spun a race and it was putting a very large camber on one side before it was noticed. (aka i was not the daily driver)
3 - power steering added. Lot more force on the older parts.
4 - It has been operating on some seriously un improved roads for last year working on some college research projects in non urban areas. aka farm work for a farm truck.

real issue is they don't make aftermarket replacement parts in same style.
But lots of guys converting front ends to kits so someone has to have one in the scrap pile.

**Hcb3200** · 12-15-2021, 12:01 PM

forgot to add two thing.

The "exposed spindle" is actually a spacer. I am running cpp aftermarket hubs.
Due to the spun race on original hubs.

Second.
King pins was getting tight and would not take grease. Never been rebuilt.
The rebuild kit came in the day before it broke and was on the plan for next to weeks to rebuild.
This was most likely the contributing factor.

_Ogre · 12-15-2021, 12:28 PM

yikes! that could have hurt at any other speed than a parking lot
contact paulspickupparts he is a member with lots of parts and very helpful
http://67-72chevytrucks.com/vboard/member.php?u=103200

**Hcb3200** · 12-15-2021, 02:24 PM

You guys are awesome.
have a line on a salvage one out west.
two NOS are making sure they could put their hands on it.

Would love to help a member out first if they have one.
Got a few days before I pull the trigger.
pulling everything to redo those kingpins and validate like the guys above said nothing else is going on.

Thanks

**Hcb3200** · 12-15-2021, 03:18 PM

forge number looks like

5147 RGT

gottattooz · 12-15-2021, 03:27 PM

I'm on the south side of Atlanta in Lovejoy, and I might have one I can bring to you. I'll check after work today.

-Josh

**Hcb3200** · 12-15-2021, 04:03 PM

that would be awesome.
I can also make the excuse to head toward macon to visit mom

**Hcb3200** · 12-15-2021, 04:14 PM

The one at the top is the one I need.
The bottom one is passenger side and i have guys that have those.

**mr48chev** · 12-15-2021, 04:20 PM

I've never seen a steering arm on an AD or TF truck break. I've seen some that were bent up in a wreck but never broken. I have to wonder what compromised that one.

**Hcb3200** · 12-15-2021, 08:05 PM

you are correct sir.
A quick impact on the nuts.
A little wire wheel on some 65 year old grime and
bingo

3728391
GM14

say the numbers.
Bingo

_Ogre · 12-16-2021, 01:48 PM

Quote:

Originally Posted by gottattooz

I'm on the south side of Atlanta in Lovejoy, and I might have one I can bring to you. I'll check after work today.

-Josh

don't you like the way this forum works?

gottattooz, have we seen pics of this panel truck???

**Hcb3200** · 12-16-2021, 02:38 PM

Well parts off and wire brushed working my way to the king pins.
Interesting how the metal looks on the inside for all you metallurgist types.

left side king pins not as tight as I thought.

Will see how the right side is later

Ill get the passenger forge numbers when I get to that side.

**Hcb3200** · 12-16-2021, 02:39 PM

I do like the Irony of the word where it snapped.

gottattooz · 12-16-2021, 02:55 PM

Quote:

Originally Posted by _Ogre

don't you like the way this forum works?

gottattooz, have we seen pics of this panel truck???

http://67-72chevytrucks.com/vboard/s...d.php?t=823156

I love this forum. I enjoy helping people, whether it's with parts they need or knowledge or just another perspective on how to do something. I'm happy to contribute when I can because it's nice when it comes full circle.

-Josh

**Hcb3200** · 12-16-2021, 03:00 PM

I appreciate the quick check on parts thanks gottattooz

I checked out that panel build thread. Lot of work I see you completed in just one weekend.

gottattooz · 12-16-2021, 06:55 PM

Quote:

Originally Posted by Hcb3200

I appreciate the quick check on parts thanks gottattooz

I checked out that panel build thread. Lot of work I see you completed in just one weekend.

I did the same thing with my 1968 Jeep wagoneer build, so I had a pretty good headstart with the experience I gained. Hopefully, I'll get back on it soon. Working second shift kills my free time in the shop. I'm too lazy to get up early and mess with it, and I don't want to upset my neighbors by banging around until 3 am.

http://67-72chevytrucks.com/vboard/s...d.php?t=768482

-Josh

**mr48chev** · 12-17-2021, 03:17 AM

That arm looks like it has been cracked for a while. W it heated and bent to reshape it by chance?

**Hcb3200** · 12-17-2021, 09:33 AM

Quote:

Originally Posted by gmc jr van

The number 3711883 is for the passenger side. You need P/N 3755045. The parts book show no forged number.

How come I don't get this kind of service at my local parts store?

I really appreciate the extra effort.

couple of the out west salvage guys think they have one waiting on picture verification. got a couple pics that did not match from a couple of shops.

**Hcb3200** · 12-17-2021, 09:35 AM

Quote:

Originally Posted by mr48chev

That arm looks like it has been cracked for a while. W it heated and bent to reshape it by chance?

never been heated or bent by us. and I doubt previous owners did as they thought pouring gas in the carb to get it started was normal

_Ogre · 12-17-2021, 01:25 PM

Quote:

Originally Posted by Hcb3200

and I doubt previous owners did as they thought pouring gas in the carb to get it started was normal

it isn't???

**mr48chev** · 12-17-2021, 02:55 PM

The original damage may have happened years ago then. Luckily it didn't break when you were rolling down the freeway at 70.

Then again it may have just been a bad piece to begin with that never got stressed until that day.

12-14-2021, 11:05 PM	#1
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	driver control arm 1956 chevy 3200 is there a replacement for the driver side control arm? we snapped one in half in a parking lot at least and not on road. Need a replacement. But cannot seem to find one on the big online guys. I have two brand new sets of tie rods and tie rod ends but no arms for the trucks. car arms everywhere it seems.

12-15-2021, 04:00 AM	#2
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,744	Re: driver control arm 1956 chevy 3200 What suspension do you have? Stock 56 3200 does not have "control arms" Or what are you calling a "control Arm"? __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

12-15-2021, 09:48 AM	#3
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 Stock steering linkages disk brakes Power steering cpp 400 with stock drag link. this arm Attached Images

12-15-2021, 11:12 AM	#4
paulspickupparts Senior Member Join Date: Sep 2011 Location: Seward Nebraska Posts: 1,596	Re: driver control arm 1956 chevy 3200 Not sure what you have going on here but is your steering arm rubbing the inside of the tire ? I might have one but you may need to address why it cracked and broke. Very uncommon . A pothole should never have done this or we would all be in the ditch . Also there appears to be some of your spindle exposed in the wheel bearing area. Maybe its just the photo I hope.

12-15-2021, 11:32 AM	#5
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 the rub is from hard parking lot turns where the tire gets to the drag link. Running wider tires. it does not rub in normal operation. Multiple items contributed to the break (lucky in parking lot) 1 - age (and unknown wear we are not the first owners) 2 - hub spun a race and it was putting a very large camber on one side before it was noticed. (aka i was not the daily driver) 3 - power steering added. Lot more force on the older parts. 4 - It has been operating on some seriously un improved roads for last year working on some college research projects in non urban areas. aka farm work for a farm truck. real issue is they don't make aftermarket replacement parts in same style. But lots of guys converting front ends to kits so someone has to have one in the scrap pile.

12-15-2021, 12:01 PM	#6
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 forgot to add two thing. The "exposed spindle" is actually a spacer. I am running cpp aftermarket hubs. Due to the spun race on original hubs. Second. King pins was getting tight and would not take grease. Never been rebuilt. The rebuild kit came in the day before it broke and was on the plan for next to weeks to rebuild. This was most likely the contributing factor.

12-15-2021, 12:28 PM	#7
_Ogre Registered User Join Date: Jan 2012 Location: Motown Posts: 7,680	Re: driver control arm 1956 chevy 3200 yikes! that could have hurt at any other speed than a parking lot contact paulspickupparts he is a member with lots of parts and very helpful http://67-72chevytrucks.com/vboard/member.php?u=103200 __________________ cool, an ogre smiley Ogre's 58 Truk build how to put your truck year and build thread into your signature shop air compressor timer

12-15-2021, 02:24 PM	#8
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver steering arm 1956 chevy 3200 You guys are awesome. have a line on a salvage one out west. two NOS are making sure they could put their hands on it. Would love to help a member out first if they have one. Got a few days before I pull the trigger. pulling everything to redo those kingpins and validate like the guys above said nothing else is going on. Thanks

12-15-2021, 03:18 PM	#9
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 forge number looks like 5147 RGT Attached Images

12-15-2021, 03:27 PM	#10
gottattooz Registered User Join Date: Apr 2008 Location: Hampton, Ga Posts: 921	Re: driver control arm 1956 chevy 3200 I'm on the south side of Atlanta in Lovejoy, and I might have one I can bring to you. I'll check after work today. -Josh __________________ 1967 Buick Special wagon 1968 Jeep Wagoneer 1958 Chevy Panel Truck 2017 Suzuki M109R

12-15-2021, 04:03 PM	#11
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 that would be awesome. I can also make the excuse to head toward macon to visit mom

12-15-2021, 04:14 PM	#12
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 The one at the top is the one I need. The bottom one is passenger side and i have guys that have those. Attached Images

12-15-2021, 04:20 PM	#13
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,744	Re: driver control arm 1956 chevy 3200 I've never seen a steering arm on an AD or TF truck break. I've seen some that were bent up in a wreck but never broken. I have to wonder what compromised that one. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

12-15-2021, 08:05 PM	#14
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 you are correct sir. A quick impact on the nuts. A little wire wheel on some 65 year old grime and bingo 3728391 GM14 say the numbers. Bingo Attached Images

12-16-2021, 02:38 PM	#16
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 Well parts off and wire brushed working my way to the king pins. Interesting how the metal looks on the inside for all you metallurgist types. left side king pins not as tight as I thought. Will see how the right side is later Ill get the passenger forge numbers when I get to that side. Attached Images



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12-16-2021, 02:39 PM	#17
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 I do like the Irony of the word where it snapped.

12-16-2021, 03:00 PM	#19
Hcb3200 Senior Member Join Date: Apr 2017 Location: Suwanee GA Posts: 276	Re: driver control arm 1956 chevy 3200 I appreciate the quick check on parts thanks gottattooz I checked out that panel build thread. Lot of work I see you completed in just one weekend.

12-17-2021, 03:17 AM	#21
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,744	Re: driver control arm 1956 chevy 3200 That arm looks like it has been cracked for a while. W it heated and bent to reshape it by chance? __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

12-17-2021, 02:55 PM	#25
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,744	Re: driver control arm 1956 chevy 3200 The original damage may have happened years ago then. Luckily it didn't break when you were rolling down the freeway at 70. Then again it may have just been a bad piece to begin with that never got stressed until that day. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

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