Author Topic: Upper Control Arm  (Read 18178 times)

dtep

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Upper Control Arm
« on: May 07, 2015, 03:28:47 AM »
I need to replace the right upper control arm on my wife's 68 RS.  Goodmark has one that has the ball joint riveted in which matches the current part.  All the other replacements that I've found have the ball joint bolted in.  I've seen some criticism of Goodmark body parts and am wondering if anyone has used their control arms.  If so, how was the quality and fit?

My68SS

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Re: Upper Control Arm
« Reply #1 on: May 07, 2015, 03:23:52 PM »
What's wrong with yours? Goodmark seem to have only the left side atm.
Rob
1968 12C SS
L34/M40
12 bolt posi 3.55

ZLP955

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Re: Upper Control Arm
« Reply #2 on: May 08, 2015, 01:52:50 AM »
If the originality of having the riveted upper ball joint is important to you (and it sounds like it is!), several vendors offer rivets and I have also seen people go to the trouble of machining replacement bolt heads into a rivet-like dome. Looks original, although no idea how they can be sure they are fully tight without being able to get a tool on the bolt head.......
Here's just one link to the OE-style rivets: http://www.heartbeatcitycamaro.com/store/product/14629/Camaro-Ball-joint-rivets-%288%29-upper-1967-1968-1969/
Tim in Australia.
1969 04A Van Nuys Z/28. Cortez Silver, Dark Blue interior, VE3, Z21, Z23, D55/U17, D80, flat hood.
Sold at Clippinger Chevrolet in Covina, CA.
AHRA Formula Stock at Lions Dragstrip, NHRA E/MP at Pomona Raceway

ko-lek-tor

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Re: Upper Control Arm
« Reply #3 on: May 08, 2015, 03:01:10 AM »
Bentley to friends :1969 SS/RS 396 owned 79
1969 SS 350 (sold)
1969 D.H.COPO replica 4spd. owned since 85
1967 302 4 spd 5.13

68camaroz28

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Re: Upper Control Arm
« Reply #4 on: May 08, 2015, 03:22:35 AM »
If the originality of having the riveted upper ball joint is important to you (and it sounds like it is!), several vendors offer rivets and I have also seen people go to the trouble of machining replacement bolt heads into a rivet-like dome. Looks original, although no idea how they can be sure they are fully tight without being able to get a tool on the bolt head.......
Here's just one link to the OE-style rivets: http://www.heartbeatcitycamaro.com/store/product/14629/Camaro-Ball-joint-rivets-%288%29-upper-1967-1968-1969/
And more to add to Tim's comment, the corvette houses just about all sell ball joint bolts that are already shaped like the rivet head so it gives the car the correct look.
As already asked, what is wrong with your a-arm?
Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584

dtep

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Re: Upper Control Arm
« Reply #5 on: May 09, 2015, 01:48:19 AM »
Sorry about the slow response, but I've been traveling for business.  This car is not a show car as you can tell from the picture below.  I just got it for my wife for Christmas and am beginning to make it roadworthy.  I don't have to have the rivets, but that's what it has now and, if I have to buy a new arm anyway, I'd like to keep it stock appearing.

The front edge of the arm where the metal turns up is about 2/3 gone from up near the frame down to about 3/4 of the way to the ball joint.  It was interesting in that it really looked like a 3 ply laminate where two of them separated (and rusted) from the other ply.  The two fell out when I started scraping them with a screw driver. 

Sauron327

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Re: Upper Control Arm
« Reply #6 on: May 09, 2015, 02:13:21 AM »

And more to add to Tim's comment, the corvette houses just about all sell ball joint bolts that are already shaped like the rivet head so it gives the car the correct look.
As already asked, what is wrong with your a-arm?
Many of the Camaro vendors also sell the bolts with rivet heads.

My68SS

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Re: Upper Control Arm
« Reply #7 on: May 09, 2015, 03:52:38 AM »
That heavy lump of steel has rusted away!??!  :o outrageous!! What's the rest of the car like?? [btw - no pic is showing]
I would look around for a good used original from any 1st gen. The upper ball joint has very little work to do and they usually last forever, which is why they're riveted in.
I wouldn't even worry about changing the rubber bushes, for now at least, even if they look a little ratty around the edges. The rubber inside the bushes will still be good enough to make the car roadworthy - if that's all you looking to do for now.
Rob
1968 12C SS
L34/M40
12 bolt posi 3.55

ZLP955

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Re: Upper Control Arm
« Reply #8 on: May 09, 2015, 06:22:49 AM »
So how do you tighten up the 'rivet-headed' bolts?
Tim in Australia.
1969 04A Van Nuys Z/28. Cortez Silver, Dark Blue interior, VE3, Z21, Z23, D55/U17, D80, flat hood.
Sold at Clippinger Chevrolet in Covina, CA.
AHRA Formula Stock at Lions Dragstrip, NHRA E/MP at Pomona Raceway

ko-lek-tor

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Re: Upper Control Arm
« Reply #9 on: May 09, 2015, 01:58:20 PM »
I know these are 67, but hey the price is right!!!  http://www.yenko.net/ubbthreads/ubbthreads.php/topics/611665/67-camaro-control-arms#Post611665

one more time...wish I could put neon and arrows around this!

It is a "bird in the hand", do NOT procrastinate. Will not last at this price.
Bentley to friends :1969 SS/RS 396 owned 79
1969 SS 350 (sold)
1969 D.H.COPO replica 4spd. owned since 85
1967 302 4 spd 5.13

My68SS

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Re: Upper Control Arm
« Reply #10 on: May 09, 2015, 03:12:22 PM »
I know these are 67, but hey the price is right!!!  http://www.yenko.net/ubbthreads/ubbthreads.php/topics/611665/67-camaro-control-arms#Post611665

one more time...wish I could put neon and arrows around this!

It is a "bird in the hand", do NOT procrastinate. Will not last at this price.

Those uppers look perfect - don't even clean them - they are grubby survivors!!
Rob
1968 12C SS
L34/M40
12 bolt posi 3.55

dtep

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Re: Upper Control Arm
« Reply #11 on: May 09, 2015, 06:42:45 PM »
I PM'd the guy over on the Supercars forum.  At least one person admitted to having PM'd him before me.  I'll let you know what happens.  Thanks for the tip.

69Z28-RS

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Re: Upper Control Arm
« Reply #12 on: May 09, 2015, 09:09:20 PM »
Sorry about the slow response, but I've been traveling for business.  This car is not a show car as you can tell from the picture below.  I just got it for my wife for Christmas and am beginning to make it roadworthy.  I don't have to have the rivets, but that's what it has now and, if I have to buy a new arm anyway, I'd like to keep it stock appearing.

The front edge of the arm where the metal turns up is about 2/3 gone from up near the frame down to about 3/4 of the way to the ball joint.  It was interesting in that it really looked like a 3 ply laminate where two of them separated (and rusted) from the other ply.  The two fell out when I started scraping them with a screw driver. 

Unless you know/understand how/why the one control arm rusted away (without the rest of the car doing the same), I'd thoroughly check the other control arms!   The only reason I suspect could cause that area to rust away is for wet trash etc to have sit there (and stayed wet) for years.   Was the car sitting outside? or where that one side was exposed??   Please check the other control arms carefully and use a screwdriver or something hard to scrape in those areas to ensure they are sound...
09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

68camaroz28

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Re: Upper Control Arm
« Reply #13 on: May 10, 2015, 02:11:31 AM »
So how do you tighten up the 'rivet-headed' bolts?

LOL, that's a good one Tim! Never used but know people that have so must not be an issue.
Agree 100% with Gary, that the car should be evaluated to see what other damage might be lurking or understanding why so heavily at that area.
Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584

dtep

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Re: Upper Control Arm
« Reply #14 on: May 10, 2015, 02:45:03 AM »
I just bought the car in December and, because of work, have spent exactly one afternoon working on it.  A friend and I pulled the brake drums and found that the right side brakes looked good, but the left drums both were a bear to get off and the top third of one shoe in each looked like it had been wet.  There was rust on the drum and the material on the shoe had broken down.  My buddy found the control arm problem.  I just went out and looked at the other control arms and they all seem pretty solid.  There is a lot of dirt sitting down in the valley in that part of the control arm so maybe that was the culprit.  All in all, I think it's a pretty solid car for its age, but I'm just getting back into cars after a 25 year layoff so what do I know?  :-)  The odometer only shows 12k+ miles, but who knows if that is original or not.  The car allegedly sat in a garage for the last eight years so I need to replace all the belts and hoses and go through the braking system before I let my wife take it out.  I'd like to get it done this summer, but at the rate of one afternoon every six months, it's going to be a while.