Author Topic: '68 Mustang Coupe Drag Car  (Read 58067 times)

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mbrunson427

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Re: '68 Mustang Coupe Drag Car
« Reply #150 on: Today at 09:08:53 AM »
I see you added the leaf spring rear slider from Calvert. Do you know the theory behind how they work? Is it a better set up than stock style hangers?
I’m pulling everything apart for repairs and was looking at the rear sliders.
Thanks, Mike Gray

From my understanding it frees up the leaf spring and lets it move in the direction its looking to go, whereas a normal hanger rotates in a circular motion. When I set those up I made it to where the track on the slider points directly at the front spring perch. So if you were to take a laser or a string and run it along the slider path, it would point you right at the front spring perch. That allows the leaf spring to bow downward and the back of the spring narrows along the set plane of the spring. With a shackle, once the back of the spring narrows enough, it will begin to lift up along the motion of the shackle (and work against rear end separation). Not sure if this is making sense as I type it, seems easier to explain by drawing a picture.

I found this picture. This helps show what I mean I think.


There are also companies that make dropper sliders which will assist in rear separation. I didn't see any need of doing something as radical as that.
https://www.lpracing.net/product-page/rear-leaf-spring-separation-sliders

I'm not sure if you can run sliders in stock class?? But if this helps....when I pulled apart our car to put these sliders on, I found that large sleeves had been cut into the frame. It had polyurethane bushings in it that had been greased like crazy. Took me a while to clean up! I'm assuming they did this to allow the shackle to move as freely as possible.

Mike Brunson
BrunsonPerformance.com

mbrunson427

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Re: '68 Mustang Coupe Drag Car
« Reply #151 on: Today at 09:12:25 AM »
Mike, I wrote a reply on the previous page as well about the perches. You might miss it because it moved on to a new page.
Mike Brunson
BrunsonPerformance.com