Notices
C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette

tubular a-arms

 
Old 05-14-2019, 10:32 AM
  #441  
jimbo1972
CF Senior Member
 
jimbo1972's Avatar
 
Member Since: May 2005
Location: RedSoxNation Cape Cod, MA
Posts: 1,091
Received 15 Likes on 7 Posts
Default

Has anyone installed these and run them yet? I have mine on order. Going to run them with coilovers. This is my takeaway from this thread....

-you need to swap the uppers and lowers left to right to make them work on a vette.

Lowers:
-lowers need the sway bar bracket moved to the front of the arm (I have new brackets to weld on so may just leave the originals mounted on the back side).
-remove the steering stop on the lower??
-remove and swap around the mounting shaft.

Uppers:
-swap left to right.
-machine the mounting shaft to achieve desirable alignment specs (camber/caster).
-possibly have to elongate one of the mounting holes on the shaft. Which hole is preferred to elongate?

If I missed anything, please let me know.
-Jimbo
jimbo1972 is offline  
Old 05-14-2019, 10:52 AM
  #442  
PainfullySlow
CF Senior Member
 
PainfullySlow's Avatar
 
Member Since: Sep 2017
Location: Tolland CT
Posts: 1,118
Received 283 Likes on 184 Posts
Default

Originally Posted by jimbo1972 View Post
Has anyone installed these and run them yet? I have mine on order. Going to run them with coilovers. This is my takeaway from this thread....

-you need to swap the uppers and lowers left to right to make them work on a vette.

Lowers:
-lowers need the sway bar bracket moved to the front of the arm (I have new brackets to weld on so may just leave the originals mounted on the back side).
-remove the steering stop on the lower??
-remove and swap around the mounting shaft.

Uppers:
-swap left to right.
-machine the mounting shaft to achieve desirable alignment specs (camber/caster).
-possibly have to elongate one of the mounting holes on the shaft. Which hole is preferred to elongate?

If I missed anything, please let me know.
-Jimbo
So far this looks right. I am about halfway through this process so I will update if I discover anything new.



Gotta love New England weather. 30 degrees under average for the last week. It was 34 degrees overnight and warmed up to a balmy 44 during the day...and it has been raining for days. I did manage to find a little dry time between storms to get out and test fit the lower control arm project. I wanted to ensure that I was welding the sway bar tab back in absolutely the right spot so this was the most sure method that I could think of.




To so start I installed the sway bar link into the bar and tightened it enough so that it was rigid and then installed the lower control arm into place. It worked perfectly and gave me an exact idea of where I needed the tab to be welded.






















Then it was a simple matter of fixing the tab in place so that it could be welded. I triple checked the location as I was borrowing an adage from the wood working community: measure thrice, weld once.











The weld looks terrible because I ran out of shielding gas mid-stream but it is very strong. Since I do not want this popping off while driving I did a very scientific test: I smacked the tab with a 5lb sledge. It passed :-p







I also welded the steering bump stop back in on the correct side. Note that it had to be placed up on the tube rather than on the flat spot that it came off of. This is based off of measurements taken from the original control arms. Since the shapes are different there is no easy way to do this so I used the center of the ball joint hole as a constant since I know that it has to be the same between both arms.







So, I have to go get more shielding gas today and then I will clean up the weld on this tab and start on the other side.

Last edited by PainfullySlow; 05-14-2019 at 10:54 AM.
PainfullySlow is offline  
Old 05-14-2019, 01:40 PM
  #443  
sunflower 1972
CF Senior Member
 
sunflower 1972's Avatar
 
Member Since: Sep 2016
Location: Wauconda IL
Posts: 431
Received 67 Likes on 57 Posts
Default

Originally Posted by jimbo1972 View Post
Has anyone installed these and run them yet? I have mine on order. Going to run them with coilovers. This is my takeaway from this thread....

-you need to swap the uppers and lowers left to right to make them work on a vette.

Lowers:
-lowers need the sway bar bracket moved to the front of the arm (I have new brackets to weld on so may just leave the originals mounted on the back side).
-remove the steering stop on the lower??
-remove and swap around the mounting shaft.

Uppers:
-swap left to right.
-machine the mounting shaft to achieve desirable alignment specs (camber/caster).
-possibly have to elongate one of the mounting holes on the shaft. Which hole is preferred to elongate?

If I missed anything, please let me know.
-Jimbo
I used these uppers:https://www.ebay.com/itm/For-1958-19...orig_cvip=true
and I DID NOT swap left to right. I installed the left on the left side, and the right on the right. I would think if you swap the positions on the upper control arms, you will end up with NEGATIVE caster, which defeats the purpose of using these arms. In regards of elongating one of the upper control arm shaft mounting holes, I chose to use the rear mounting hole, although it really shouldn't make a difference.

Last edited by sunflower 1972; 05-14-2019 at 02:37 PM.
sunflower 1972 is offline  
The following users liked this post:
bmans vette (05-14-2019)
Old 05-14-2019, 09:12 PM
  #444  
PainfullySlow
CF Senior Member
 
PainfullySlow's Avatar
 
Member Since: Sep 2017
Location: Tolland CT
Posts: 1,118
Received 283 Likes on 184 Posts
Default

One down, one to go. Perfectly powdercoated after all of the modifications.





The second one is all welded up and just awaiting powder. If the weather holds I should be able to mount these tomorrow.



One important note: These are NOT powdercoated from the vendor, they are painted. If you want to powder coat these you will have to take them down to bare metal (which I did). I am really glad that I discovered this as I feel that the paint on them, while it looks nice new, is not very durable.
PainfullySlow is offline  
The following 3 users liked this post by PainfullySlow:
bmans vette (05-15-2019), CUDACRAZY (05-14-2019), sunflower 1972 (05-14-2019)
Old 05-15-2019, 12:26 AM
  #445  
bmans vette
CF Senior Member
Support Corvetteforum!
 
bmans vette's Avatar
 
Member Since: Nov 2006
Location: Athens GA
Posts: 18,740
Received 264 Likes on 243 Posts
St. Jude Donor '12-'13, '15- '16-'17-'18-'19
Default

Originally Posted by PainfullySlow View Post
One down, one to go. Perfectly powdercoated after all of the modifications.





The second one is all welded up and just awaiting powder. If the weather holds I should be able to mount these tomorrow.



One important note: These are NOT powdercoated from the vendor, they are painted. If you want to powder coat these you will have to take them down to bare metal (which I did). I am really glad that I discovered this as I feel that the paint on them, while it looks nice new, is not very durable.
Good catch on the paint thing. Don't know if mentioned earlier in this thread but how did you strip them for PC? I assume you hit the bare metal with the blast also before coating.
Nice look.
bmans vette is offline  
Old 05-15-2019, 07:23 AM
  #446  
jimbo1972
CF Senior Member
 
jimbo1972's Avatar
 
Member Since: May 2005
Location: RedSoxNation Cape Cod, MA
Posts: 1,091
Received 15 Likes on 7 Posts
Default

I received my upper and lowers last night. Wow, these things are heavy duty!
Got the lowers all set and installed. They are nice quality. Still have to weld on the tab for the sway bar.
If these bushing ever fail, what can we replace them with?
-Jimbo
jimbo1972 is offline  
Old 05-15-2019, 11:01 AM
  #447  
Primoz
CF Senior Member
Thread Starter
 
Member Since: Jul 2012
Location: Slovenia, EU
Posts: 799
Received 78 Likes on 58 Posts
2017 C3 of Year Finalist
Default

Originally Posted by jimbo1972 View Post
I received my upper and lowers last night. Wow, these things are heavy duty!
Got the lowers all set and installed. They are nice quality. Still have to weld on the tab for the sway bar.
If these bushing ever fail, what can we replace them with?
-Jimbo
Probably just ordinary replacement ones that you can get anywhere.
They should be OEM size!

Last edited by Primoz; 05-15-2019 at 11:01 AM.
Primoz is offline  
Old 05-15-2019, 08:52 PM
  #448  
PainfullySlow
CF Senior Member
 
PainfullySlow's Avatar
 
Member Since: Sep 2017
Location: Tolland CT
Posts: 1,118
Received 283 Likes on 184 Posts
Default

Originally Posted by bmans vette View Post
Good catch on the paint thing. Don't know if mentioned earlier in this thread but how did you strip them for PC? I assume you hit the bare metal with the blast also before coating.
Nice look.
Ah nope, I didnt cover it but yes I did media blast them to bare metal and any time I expose bare ferrous metal, I always coat it with afterblast for the phosphate coating.


Originally Posted by jimbo1972 View Post
I received my upper and lowers last night. Wow, these things are heavy duty!
Got the lowers all set and installed. They are nice quality. Still have to weld on the tab for the sway bar.
If these bushing ever fail, what can we replace them with?
-Jimbo
I still have the lower bushings out and will compare them to the extreme energy set that I have sitting here for the OEM control arms. Stay tuned, I will let you know...
PainfullySlow is offline  
Old 05-15-2019, 09:03 PM
  #449  
bmans vette
CF Senior Member
Support Corvetteforum!
 
bmans vette's Avatar
 
Member Since: Nov 2006
Location: Athens GA
Posts: 18,740
Received 264 Likes on 243 Posts
St. Jude Donor '12-'13, '15- '16-'17-'18-'19
Default

[QUOTE=PainfullySlow;1599409085]Ah nope, I didnt cover it but yes I did media blast them to bare metal and any time I expose bare ferrous metal, I always coat it with afterblast for the phosphate coating.




/QUOTE]
Thanks Mike!
bmans vette is offline  
Old 05-17-2019, 08:34 AM
  #450  
PainfullySlow
CF Senior Member
 
PainfullySlow's Avatar
 
Member Since: Sep 2017
Location: Tolland CT
Posts: 1,118
Received 283 Likes on 184 Posts
Default

I got them mounted up and they look good. Installed new Moog ball joints since I was not sure what brand/quality was in there. The re-positioned tabs line up perfectly with the sway bar.









PainfullySlow is offline  
Old 05-17-2019, 07:53 PM
  #451  
PainfullySlow
CF Senior Member
 
PainfullySlow's Avatar
 
Member Since: Sep 2017
Location: Tolland CT
Posts: 1,118
Received 283 Likes on 184 Posts
Default

Final update on this thread for a bit as it will be a while before I can actually road test these however I did manage to get both uppers and lowers completely installed and they went in well and without a hitch. Also it is good to see that my OCD actually paid off for once. All that measuring was worth it as the steering stop ended up exactly where it needed to be.

As a personal note, I do not care for the red delrin bumpers. Those will be getting replaced with something a little more color appropriate for my project.

I will post here again once the car is roadworthy and able to be tested.




PainfullySlow is offline  
The following 4 users liked this post by PainfullySlow:
bmans vette (05-17-2019), OldCarBum (05-18-2019), Primoz (05-18-2019), sunflower 1972 (05-17-2019)
 


Thread Tools
Search this Thread
Quick Reply: tubular a-arms


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: