drabon74
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According to Eibach's website, the Pro Kit is progressive.The Eibach Pro Kit is linear. The Sportlines are progressive. This is directly from Eibach.![]()
I was talking with Eibach 2-3 weeks ago and mentioned that the website stated that the Pro Kit was progressive and he said QUOTE" They are a linear spring with a progressive rate." LOL. I laughed and said does that even makes sense? He transferred me to an engineer that confirmed this. I am going to call back today.According to Eibach's website, the Pro Kit is progressive.
http://eibach.com/america/en/eibach-news/ford-mustang-2015-plus-pro-kit
However, the springs themselves look exactly like other linear springs and nothing like the coils on the Sportlines, which I find interesting. Did you call Eibach to ask them if they were linear?

Ok. Just got off the phone with Dave at Eibach. He double triple checked and yes the Pro Kit for our Mustang is LINEAR. He said that that link is just generic info. There are many Pro Kits out there for many different cars and most are progressive but for ours they are linear. He is going to update the website.According to Eibach's website, the Pro Kit is progressive.
http://eibach.com/america/en/eibach-news/ford-mustang-2015-plus-pro-kit
However, the springs themselves look exactly like other linear springs and nothing like the coils on the Sportlines, which I find interesting. Did you call Eibach to ask them if they were linear?
That could mean that it is not wound progressive but the spring coil itself becomes thicker. But... yeah sounds goofyI was talking with Eibach 2-3 weeks ago and mentioned that the website stated that the Pro Kit was progressive and he said QUOTE" They are a linear spring with a progressive rate." LOL. I laughed and said does that even makes sense? He transferred me to an engineer that confirmed this. I am going to call back today.![]()
Pro kit linear Sportlines progressiveThat could mean that it is not wound progressive but the spring coil itself becomes thicker. But... yeah sounds goofy
What?! Lol. I mean from looks alone, they look linear, but everywhere has them advertised as progressive. Kinda makes me wonder what kind of springs I bought, haha.Ok. Just got off the phone with Dave at Eibach. He double triple checked and yes the Pro Kit for our Mustang is LINEAR. He said that that link is just generic info. There are many Pro Kits out there for many different cars and most are progressive but for ours they are linear. He is going to update the website.
If I have the space underneath the car, I'll measure the spring diameter at different places with my measuring caliper and see if that's the case. If the spring diameter is the same and it's not wound progressively, then that would make the think they are linear after all, unless I'm missing something.That could mean that it is not wound progressive but the spring coil itself becomes thicker. But... yeah sounds goofy