Fox T-Bird/Cougar Forums

Technical => Suspension/Steering => Topic started by: Ether947 on December 25, 2005, 07:51:45 PM

Title: Spring ID
Post by: Ether947 on December 25, 2005, 07:51:45 PM
I noticed a little green tag on my TC rear springs and I was wondering if anyone could tell me what it means.

HRE
E7SC <- reguesstimate
35.0/4086
5560-KA

Thanks a bunch.

Antonio.
Title: Spring ID
Post by: Tbird232ci on December 25, 2005, 08:18:13 PM
E7SC means its an 87 part, and it is made for the tbird/cougar
Title: Spring ID
Post by: Ether947 on December 26, 2005, 01:33:13 PM
i know that part. :P what about the other stuff? can the spring rate be determined from this?
Title: Spring ID
Post by: Chuck W on December 26, 2005, 04:12:44 PM
The 35.0 is the initial spring rate in N/mm.  That converts to 200lb/in.  That's a pretty standard spring rate for the Foxes.  Since all but a rare few have linear rear springs, that is the initial spring rate.  Usually they are 200-300# progressive.

The 4086 is the load rating in N.  That converts to 918 lbf. (Pounds force).  That's lighter than the original rear springs in my 84 XR-7 (944 lbf), but still much higher than most Fox Mustang rears, and even the SN-95's aren't that high, but they get closer.
Title: Spring ID
Post by: Ether947 on December 26, 2005, 05:00:48 PM
coolbeans. thanks chuck. :D