The D44 is stronger than the D36 used in early C4's.
C4 suspension
Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,160
Likes: 23
From: Prescott AZ
C4 suspension
Hi guys,
It looks like I have found a donor for my C4 suspension upgrade to my spare frame of my 1970 vette. I know others have done this upgrade also. I am looking for any insights, things to watch out for and especially pictures of projects in the works or completed. Any help would be greatly appreciated.
Thanks in advance,
Rob
It looks like I have found a donor for my C4 suspension upgrade to my spare frame of my 1970 vette. I know others have done this upgrade also. I am looking for any insights, things to watch out for and especially pictures of projects in the works or completed. Any help would be greatly appreciated.
Thanks in advance,
Rob
Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,160
Likes: 23
From: Prescott AZ
I've done a fair amount of research and along with help from you guys, I knew I was looking for the D44. I like to make informed decisions before jumping into something. That's why I am looking for whatever knowledge I can get form other forum members before I actually begin work
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Cool idea. I must have missed the other threads. I know some of the aftermarket frames use C4 stuff. Be sure to bring lots of pics when this is going on. There are a couple of C4's in the local JY near me, but I am sure those guys think they are gold just like everything else in their yard.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,160
Likes: 23
From: Prescott AZ
Hi guys,
I was really hoping to get some more feed back from others who have done a C4 suspension upgrade. 69427 did his with a C3 pumpkin and batwing. I appreciate his input and photos. They were very helpful, but would like to check out all avenues before starting into this project. I was hoping to hear from someone who has gone with all C4 stuff. Anyone out there that can help?
I was really hoping to get some more feed back from others who have done a C4 suspension upgrade. 69427 did his with a C3 pumpkin and batwing. I appreciate his input and photos. They were very helpful, but would like to check out all avenues before starting into this project. I was hoping to hear from someone who has gone with all C4 stuff. Anyone out there that can help?
Racer
Joined: Mar 2005
Posts: 303
Likes: 2
From: southeast Idaho
I am starting on one, mid 70's frame with 86 suspension (dana 44). I need to spend a couple more hours on the trans mount then I am ready to start on the rear suspension but it seems I wont have much time for a few weeks. Always looking for ideas, pics, ect.
Mike
Mike
Racer
Joined: Feb 2000
Posts: 267
Likes: 0
From: Kelowna, B.C. Canada
Burning Brakes
Joined: Oct 2003
Posts: 1,090
Likes: 74
From: New Carlisle IN
Here is a guy I know who did one. May not be the "correct" way to do it but it got the job done. I don't know if you can access this page, but here is the link:
http://web.ics.purdue.edu/~papa/foru...ad.php?t=10903
http://web.ics.purdue.edu/~papa/foru...ad.php?t=10903
Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,160
Likes: 23
From: Prescott AZ
I picked up my new suspension from a 1993 ZR1 yesterday. It's in great shape. Got it in the shop setting next to the project frame. Now I just need to find some time to start playing with it. Would love to see some more pictures of projects in the works or completed. I'll keep you guys up to date as the project moves forward.
Rob
Rob
Racer
Joined: May 2007
Posts: 296
Likes: 4
From: London Ontario
I did the front end in my car. I haven't finished the rest of the car yet so I'm not exactly sure how it will work out, but it looks good. I cut the frame right before the spring pockets and made a new section of frame out of 4" sq tubing. On the new section I had brackets that matched up to the C4 front X-member, so it replace all the suspension and steering, I had to notch my motor mount for my steering shaft and the width is much wider so I needed new rims, I used WS6 rims off a firebird. The only thing I can say is take lots of measurements and make sure you have everything where you want it before you start welding. If you aren't sure how to weld frame get someone who does to help you. Its not that hard but if you forget something and your welds crack you will be pretty upset. Hope that helps. If I find some pictures I'll post them for you
Here's a link to a little bit about my build, it doesn't go into much detail but there's some good pictures
http://www.londonautoclub.org/forum/...corvette+build
Here's a link to a little bit about my build, it doesn't go into much detail but there's some good pictures
http://www.londonautoclub.org/forum/...corvette+build
Last edited by curtis75; Feb 15, 2011 at 11:52 AM.
Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,160
Likes: 23
From: Prescott AZ
I've been playing with the rear suspension. Just setting in place to see exactly how I will mount it. I was looking at it from the side and noticed that the half shafts are not perpendicular to the pumpkin. They are angled back a slight bit. I did not take an angle measurement as of yet. The rotors look to be parallel with the frame. Nothing looks bent. I haven't been able to get a C-4 on my rack to see if this is normal or not yet. It seems odd that they are not perpendicular. Was just wondering if anyone knows if this is correct before I proceed any farther.
