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Discussion Starter · #1 ·
Are the stock OEM ST springs linear or progressive? Most manufacturers use progressive, but looking at the OEM springs themselves, they look linear! Are there any progressive springs available with very little to no drop?

Also, if anyone has 2013 OEM ST springs they want to sell, I'll buy 'em off of you.
 

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Discussion Starter · #7 · (Edited)
They are not linear. Here's a whole thread on them. Start at post #136 there's a pic with the progressive coils

http://www.focusst.org/forum/focus-st-suspension/8062-ford-racing-lowering-springs-14.html
Those in the picture are definitely progressive! The only ones I can find--and the ones on the Ford Racing site--are linear, as confirmed by Ford Racing support and looking at the picture: https://performanceparts.ford.com/part/M-5300-U

Do you happen to have a part number or search terms for the progressive ones? I have googled and read threads for hours to no avail.
 

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M-5300-U is the part# for the springs. Unless they changed them at some point the ones in the thread are what you get
 
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