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CSX8000 Transverse Spring Questions

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IslandCSX8000:
Hi,
I have a CSX8000 with a rear transverse spring assembly that seems off center. The rear tires are shifted slightly towards the drivers side of the rear fenders. This is causing rubbing on the inner rear fender on the drivers side. The tires are 215/60-R15 Avons on OE wire wheels, and could reasonably be considered just a little large for the car. That said, if the tires had equal clearance on each side, looks like they should be fine.

My plan is to (after exposing the spring assembly) loosen the u-bolts and shift the spring stack over a bit. Seems like it needs 1/2 - 3/4". Never having done this, and not finding any reference to manipulating the spring assembly, thought I might ask for any guidance or advice. For instance, it would not surprise me if there was a locating pin that makes this 'adjustment' not possible.

Second question. I would like to raise the rear of the car at least an inch. Seems like every trip we take involves a full trunk, and the car rides fairly low even without that. Scraping mufflers and so forth. Is adding a leaf, or re-arching the springs a choice anyone here has made? I am in Northern California, so finding a shop experienced with re-arching might be a challenge?

Thank you for reading this. Anything that makes the car more driveable is a win in my book!

pbf777:

--- Quote from: IslandCSX8000 on June 13, 2021, 03:06:12 PM ---The rear tires are shifted slightly towards the drivers side of the rear fenders.
--- End quote ---

     The question is:  Is the spring and related suspension mounting positions actually "shifted" to one side, as measured from the frame, or is it the body work that is off-centered?


--- Quote --- Is adding a leaf, or re-arching the springs a choice anyone here has made? I am in Northern California, so finding a shop experienced with re-arching might be a challenge?

--- End quote ---

     Adding "a" (may require more?) leaf, will raise the vehicle up, but additional leaves, arched to match the existing ones will increase the spring-rate and harshness of the ride; whereas "re-arching the existing spring stack will raise the vehicle with less effect on the ride harshness.     ;)

     Scott.

CSX2259:

The spring has a locating pin in the center that aligns with a hole in the spring tower, simply trying to move the spring by sliding it will not work in the manner you are thinking. Have you tried measuring the camber of each rear wheel to see if one side is more positive than the other? One side would be more negative and the other more positive when compared to each other. The spring acts as the upper control arm on the leaf spring chassis and the camber for each side should be very close to the same side to side. Is your car a glass body or aluminum body? What year was your car produced?
If you need any help with your car our shop is located in Southern California. We have re-arched springs for the Continuation Series Cobras and have a very good working knowledge of these cars.
You can email me directly at jkb5 at sbcglobal.net

IslandCSX8000:
Thank you so much for the replies!

I had a feeling there might be a locating pin ;-( This is a glass bodied car built in early 2017. It has been a blast to drive, but there are many things to be sorted. The tire rubbing has been bothersome, and Iím psyching myself up to pull the differential for a rebuild back at KMS. Gotten a fairly good howl going thanks to the breather defectÖ

CSX2259 Iíll reach out via email and see what we can figure out.

Thank you,

shelbydoug:
Since this is a fiberglass body, this probably doesn't apply.

If you look at the back of many CSX 2000 cars, the shape of the left fender does not match that of the right one. In fact, they look like they were hit in the rear on one side.

That makes using the fenders as templets for centering the tires and or the center of the rear, not possible.

I'd put the car up on an alighnment machine and see how square the entire chassis is. The original CSX cars were off "just" a little bit.  ;)

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