CorvetteForum - Chevrolet Corvette Forum Discussion

CorvetteForum - Chevrolet Corvette Forum Discussion (https://www.corvetteforum.com/forums/)
-   C3 Tech/Performance (https://www.corvetteforum.com/forums/c3-tech-performance-3/)
-   -   tubular a-arms (https://www.corvetteforum.com/forums/c3-tech-performance/4058443-tubular-a-arms.html)

Promise Enahoro 10-25-2021 10:15 AM


Originally Posted by ianmcgee67179 (Post 1604199896)
So I was asking a lot of questions but things came out pretty well! I ended up getting the 55 impala front end, and it worked out really well, other than one decision I made to try and save some money. It didn’t work out so great, but not terrible.


https://cimg8.ibsrv.net/gimg/www.cor...dcf555c66.jpeg
This is the new set up all laid out. eBay and Aldan American semi coilovers for the front end, with ridetech strongarm rear end.
https://cimg0.ibsrv.net/gimg/www.cor...bf8530cbb.jpeg
Original set up.
https://cimg2.ibsrv.net/gimg/www.cor...fe144fecb.jpeg
Lighting up the turns stops
https://cimg2.ibsrv.net/gimg/www.cor...64d52748b.jpeg
Welding complete
https://cimg4.ibsrv.net/gimg/www.cor...54f32dbba.jpeg
https://cimg6.ibsrv.net/gimg/www.cor...e72dabb96.jpeg
https://cimg7.ibsrv.net/gimg/www.cor...fefd1ac0d.jpeg
Welding painted up!
https://cimg8.ibsrv.net/gimg/www.cor...463e289ff.jpeg
Hat to Tap out the holes for the bolts for my Aldan springs!
https://cimg5.ibsrv.net/gimg/www.cor...c44391b9d.jpeg
https://cimg2.ibsrv.net/gimg/www.cor...a7ea02867.jpeg
https://cimg5.ibsrv.net/gimg/www.cor...dc933f548.jpeg
https://cimg7.ibsrv.net/gimg/www.cor...a60752b42.jpeg
https://cimg8.ibsrv.net/gimg/www.cor...94d10cf6d.jpeg
https://cimg2.ibsrv.net/gimg/www.cor...75bae1029.jpeg
This is my only “mistake” I was hoping the extra width would be pretty close to what my spacing shims were and wouldn’t need to cut the shaft down at all!… well I was wrong!.. I have some decent negative camber from it!.. so I’m going to take them back off and get them cut down!..
https://cimg1.ibsrv.net/gimg/www.cor...2d8253d36.jpeg
https://cimg3.ibsrv.net/gimg/www.cor...90e227057.jpeg
All fully assembled!


it feels great other then the negative camber!.. so I’m going to fix that and should be ready for the road again!! But it dropped the car a few inches and makes it stick to the road through turns!! And I love it!

Thought i ask if you have some sort of measurement or reference point for welding the bump stop and swaybar link bracket.

Richard Daugird 10-25-2021 11:30 AM

A lot to read here!

ianmcgee67179 10-30-2021 04:59 AM


Originally Posted by Promise Enahoro (Post 1604211883)
Thought i ask if you have some sort of measurement or reference point for welding the bump stop and swaybar link bracket.

I don’t have a measurement but honestly I think the best would be to bolt it up and see where it hits and mark it…I can measure mine when I get back home. I’m away on work for about 6 months so it will be a little while before I can report back.

On your previous ask to keep ya informed how it will go, I think it will be amazing, like I said I was trying to save a bit of money not cutting the cross shafts but I think after I do that, I will have more flexibility with good camber, and should all fit together nicely! I’m looking forward to finishing that small piece and then getting it aligned.

but the few drives I’ve taken so far it has felt amazing! And A Arms should work well for you!

please let me know if you have any more questions.

Richard Daugird 10-30-2021 09:31 PM

I just ordered a full set. Maybe I'll start a new thread when I install them as this one has gone over 500 posts! Great info!

Pjwaltz414 12-12-2021 07:14 PM


Originally Posted by ianmcgee67179 (Post 1604199896)
So I was asking a lot of questions but things came out pretty well! I ended up getting the 55 impala front end, and it worked out really well, other than one decision I made to try and save some money. It didn’t work out so great, but not terrible.


https://cimg8.ibsrv.net/gimg/www.cor...dcf555c66.jpeg
This is the new set up all laid out. eBay and Aldan American semi coilovers for the front end, with ridetech strongarm rear end.
https://cimg0.ibsrv.net/gimg/www.cor...bf8530cbb.jpeg
Original set up.
https://cimg2.ibsrv.net/gimg/www.cor...fe144fecb.jpeg
Lighting up the turns stops
https://cimg2.ibsrv.net/gimg/www.cor...64d52748b.jpeg
Welding complete
https://cimg4.ibsrv.net/gimg/www.cor...54f32dbba.jpeg
https://cimg6.ibsrv.net/gimg/www.cor...e72dabb96.jpeg
https://cimg7.ibsrv.net/gimg/www.cor...fefd1ac0d.jpeg
Welding painted up!
https://cimg8.ibsrv.net/gimg/www.cor...463e289ff.jpeg
Hat to Tap out the holes for the bolts for my Aldan springs!
https://cimg5.ibsrv.net/gimg/www.cor...c44391b9d.jpeg
https://cimg2.ibsrv.net/gimg/www.cor...a7ea02867.jpeg
https://cimg5.ibsrv.net/gimg/www.cor...dc933f548.jpeg
https://cimg7.ibsrv.net/gimg/www.cor...a60752b42.jpeg
https://cimg8.ibsrv.net/gimg/www.cor...94d10cf6d.jpeg
https://cimg2.ibsrv.net/gimg/www.cor...75bae1029.jpeg
This is my only “mistake” I was hoping the extra width would be pretty close to what my spacing shims were and wouldn’t need to cut the shaft down at all!… well I was wrong!.. I have some decent negative camber from it!.. so I’m going to take them back off and get them cut down!..
https://cimg1.ibsrv.net/gimg/www.cor...2d8253d36.jpeg
https://cimg3.ibsrv.net/gimg/www.cor...90e227057.jpeg
All fully assembled!


it feels great other then the negative camber!.. so I’m going to fix that and should be ready for the road again!! But it dropped the car a few inches and makes it stick to the road through turns!! And I love it!

I’ve been reading and re-reading this thread all day and all I have to say is wow. Awesome everyone pieced this stuff together.

I’m just wondering how much negative camber you ended up having with the un-modified cross shafts? I know a member much earlier in the thread — sunflower — reported -1 and -1.5 degrees of negative camber which is really within an acceptable threshold.

considering you’re running a similar set up to what I will be with the semi-Coilovers (I have Qa1’s on the way). I am interested to see if your negative camber was any more significant than his with these arms. If it was floating around the same number. I would be fine with just doing the simple mods on the lower arms and bolting them on and driving.

also, any update on how these performed while driving?? Many people have said they feel good. My cars primarily street but will see some road racing and autocross.

Thanks!

Kidster71 12-16-2021 07:17 PM

https://cimg9.ibsrv.net/gimg/www.cor...3ed63d9101.png

I got mine!
  • My brother-in-law is milling and slotting the mount hole in the upper shafts for me.
  • I’m repositioning the anti sway bar mounts.
  • I don’t need the turn stops as my 92 Pontiac Grand Am rack and pinion doesn’t have the turn radius that comes near them.
  • I’m installing set screws to hold the aluminum housing of the Del-A-Lum bushing in place so they don’t spin and misalign the zerk fitting lube holes.
  • Swapping out the offshore ball joints with my new Moog ones from my factory arms.
  • Going to reinstall my VB&P 550 front springs, Bilstein shocks, VB&P 1-1/8" solid front anti sway bar and VB&P spreader bar. It should handle better 😊
Cheers,
Richard

Primoz 04-24-2022 03:36 AM

I just finished my rear suspension and moving to the front now. I'll report how it goes with tubular upper arms as I go along.

Primoz 07-13-2022 08:59 AM

This video shows part of the build where they install tubular arms. There are more videos on this channel that cover the build of the whole Corvette.

worship79 05-02-2024 02:59 PM

Just bit the bullet on a set!
https://cimg2.ibsrv.net/gimg/www.cor...1c6b9a45a2.jpg

OldCarBum 05-05-2024 01:54 AM

Are those the ones that are actually manufactured to fit a full size Impala?
If so there are several threads from a few years ago where the members modified them to fit a C3 Corvette.

ianmcgee67179 05-05-2024 09:53 AM


Originally Posted by Pjwaltz414 (Post 1604440122)
I’ve been reading and re-reading this thread all day and all I have to say is wow. Awesome everyone pieced this stuff together.

I’m just wondering how much negative camber you ended up having with the un-modified cross shafts? I know a member much earlier in the thread — sunflower — reported -1 and -1.5 degrees of negative camber which is really within an acceptable threshold.

considering you’re running a similar set up to what I will be with the semi-Coilovers (I have Qa1’s on the way). I am interested to see if your negative camber was any more significant than his with these arms. If it was floating around the same number. I would be fine with just doing the simple mods on the lower arms and bolting them on and driving.

also, any update on how these performed while driving?? Many people have said they feel good. My cars primarily street but will see some road racing and autocross.

Thanks!

sorry it’s been a while since getting back to this thread, but yes I had way to much negative camber. I ended up having to take apart the front suspension and get the upper cross members milled out, like what was shown in earlier posts.

After fixing the front cross members, this performed amazing while driving! It feels so much more nimble and stable through turn and just driving straight down the road! I would not change a thing with my set up I have!…. Other than a borgeson steering unit! That will be going in later!

the exciting thing about this set up with independent suspension all the way around you can change things up as much as you and make it much more custom to your driving! If you a bigger road racer then you can stiffer shocks or lower and raise your car as much as you want. I have lowered my a little just for looks.

I love this set up.

Primoz 05-05-2024 10:25 AM


Originally Posted by ianmcgee67179 (Post 1607779818)
sorry it’s been a while since getting back to this thread, but yes I had way to much negative camber. I ended up having to take apart the front suspension and get the upper cross members milled out, like what was shown in earlier posts.

After fixing the front cross members, this performed amazing while driving! It feels so much more nimble and stable through turn and just driving straight down the road! I would not change a thing with my set up I have!…. Other than a borgeson steering unit! That will be going in later!

the exciting thing about this set up with independent suspension all the way around you can change things up as much as you and make it much more custom to your driving! If you a bigger road racer then you can stiffer shocks or lower and raise your car as much as you want. I have lowered my a little just for looks.

I love this set up.

Great to hear that you are satisfied with the setup! I mocked up my arms the other day and they looked all right. Still trying to solve the issue of rust on my frame but I should be up and running this fall or next autumn. I am so happy that I managed to spur this debate that went on for 27 pages on CF. I hope I helped some people out along the way and saved them a couple of $$$ as well.

augiedoggy 05-05-2024 03:40 PM

I thought hard about doing this myself but in the end I chickened out and just bought the POL upper and lower arms for the c3 since they were about half the cost of the other alternatives.

sunflower 1972 05-05-2024 04:22 PM

It's been awhile since I last checked front wheel camber, so I checked today. Appears I'll need to make a small adjustment on the left side.


https://cimg6.ibsrv.net/gimg/www.cor...ea6af57608.jpg

Right side
https://cimg0.ibsrv.net/gimg/www.cor...1f372229f8.jpg
Left side

worship79 05-06-2024 08:54 AM


Originally Posted by ianmcgee67179 (Post 1607779818)
sorry it’s been a while since getting back to this thread, but yes I had way to much negative camber. I ended up having to take apart the front suspension and get the upper cross members milled out, like what was shown in earlier posts.

After fixing the front cross members, this performed amazing while driving! It feels so much more nimble and stable through turn and just driving straight down the road! I would not change a thing with my set up I have!…. Other than a borgeson steering unit! That will be going in later!

the exciting thing about this set up with independent suspension all the way around you can change things up as much as you and make it much more custom to your driving! If you a bigger road racer then you can stiffer shocks or lower and raise your car as much as you want. I have lowered my a little just for looks.

I love this set up.

How much did you have milled off?

sunflower 1972 05-06-2024 12:39 PM


Originally Posted by worship79 (Post 1607782387)
How much did you have milled off?

See post #129 https://www.corvetteforum.com/forums...-a-arms-7.html


All times are GMT -4. The time now is 03:25 AM.


© 2024 MH Sub I, LLC dba Internet Brands