The Mustang Forum for Track & Racing Enthusiasts

Taking your Mustang to an open track/HPDE event for the first time? Do you race competitively? This forum is for you! Log in to remove most ads.

  • Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!

Boss Spring Rates

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Couple of questions on spring rates

- Are the OEM spring rates on the Boss linear or progressive? I see that the Ford Racing "P" and "K" springs are linear for the front and progressive on the rear.

- Does anyone have the OEM spring rates for std and LS Boss's?

Thanks
r/
Eric
 
I believe the P and K are the same and are equal to Pro-Kit and Sportline respectively.

http://www.cjponyparts.com/eibach-lowering-spring-pro-kit-set-v6-gt-2011-2012/p/EBS18/
 

TMO Supporting Vendors

Latest posts

Buy TMO Apparel

Buy TMO Apparel

TMO Vendor Posts

Top