Rear coil overs
Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 1,003
Likes: 48
From: hickory NC
C4 of Year Finalist (appearance mods) 2019
2017 C4 of Year Finalist
Rear coil overs
Been contemplating switching to coil overs on my '80.
Is there enough room to fit a 2 1/2" or 3" spring in there where the shock is now?
Also was wondering if it would work by coming off the rear of the trailing arm.
Weld a mount on the frame, Fab up some brackets to surround and box in the arm where the original bolt goes thru and come down from there. Seems to be a lot more room.
I don't think there would be any binding issues using coilovers with heim joints.
Anyone done this?
Thoughts?
Issues?
Reason I would like to do this is, I put in a replacement 9 leaf 2 yrs. ago and it still sits to high. Have 8" bolts in there now. 10" is too long, end of the spring rubs the sidewall. Plus, it would be something different. Hate following the crowd.
Almost forgot. Would the rates on both springs be 1/2 of what the leaf spring is or, say, a 200 lb. spring on each side if the leaf is rated at 400lbs.?
Is there enough room to fit a 2 1/2" or 3" spring in there where the shock is now?
Also was wondering if it would work by coming off the rear of the trailing arm.
Weld a mount on the frame, Fab up some brackets to surround and box in the arm where the original bolt goes thru and come down from there. Seems to be a lot more room.
I don't think there would be any binding issues using coilovers with heim joints.
Anyone done this?
Thoughts?
Issues?
Reason I would like to do this is, I put in a replacement 9 leaf 2 yrs. ago and it still sits to high. Have 8" bolts in there now. 10" is too long, end of the spring rubs the sidewall. Plus, it would be something different. Hate following the crowd.
Almost forgot. Would the rates on both springs be 1/2 of what the leaf spring is or, say, a 200 lb. spring on each side if the leaf is rated at 400lbs.?
Race Director
Joined: Jun 2000
Posts: 10,046
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From: FL
Melting Slicks
Joined: Jun 2005
Posts: 2,239
Likes: 74
From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
NCM Sinkhole Donor
Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 1,003
Likes: 48
From: hickory NC
C4 of Year Finalist (appearance mods) 2019
2017 C4 of Year Finalist
Are you running the VAn Steel system?
Was looking at the Van Steel setup and think I can build something similar for a lot cheaper.
That Sharkbite is WAY out of my price range.
Melting Slicks
Joined: Jun 2005
Posts: 2,239
Likes: 74
From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
NCM Sinkhole Donor
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Racer
Joined: Apr 2006
Posts: 429
Likes: 0
From: Marietta Georgia
I have QA1s on all four (4) corners. This is a picture of the rear set-up before I completed and painted. Just a QA1 mounting kit bolted to steel plate welded to the trailing arm. No interference with the storage/battery compartments.
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Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 1,003
Likes: 48
From: hickory NC
C4 of Year Finalist (appearance mods) 2019
2017 C4 of Year Finalist
Dam, 3 different ideas to choose from. Those are the ideas I was looking for. 
Now, to get busy and put something together.
Still wondering what spring rates to use?
Thanks guys.
Now, to get busy and put something together.
Still wondering what spring rates to use?
Thanks guys.
