Most definitely stiffer.
Those are what I'm running as well, with a 3/4" spacer under the spring perch.
As I remember, they were the same length as stock, just heavier gauge spring.
Is that what you found <font color=blue>slickerthanyou</font color=blue>?
WD-40 Reverend Grip-Shift
85 Bronco XLT, '69 351W, C6-Shift Kit, 9"-Detroit, Dana 44-Tru Trac, 2" Lift, 33X12.5s