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Dave at Pelican Parts Dave at Pelican Parts is offline
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Join Date: Dec 1969
Location: Silly-Con Valley
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Take the springs off and measure them. It's the only way to be sure. Many shops will have spring testers, but you can approximate yourself.

Remember, springs are rated in lbs/in. That's pounds of force per inch of displacement. So a bunch of weights and a ruler can help you figure out the rate--how many pounds does it take to make the spring one inch shorter? Two inches shorter?

I can't really tell anything about the struts, but I don't have much experience with 911 struts--and none at all with coil-spring 911s. I will say that these don't look quite like the Weltmesiter threaded collars that I got for my 914 rear suspension, and they definitely don't look like the Ground Controls that I bought for my CRX back when.

Pelican Parts 914 Tech Support

A few pics of my car:
Old 05-18-2013, 09:17 AM
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