Swingspring differences?

["Michael D. Nugent, Ph.D." <nugentmd@gte.net>]

I've been told that for my Spit 6 project I should use a Spit Mk4/1500
swingspring instead of the GT6 Mk3's swingspring I already have
(supposedly the Spitfire one is less stiff because of the lighter
roadster's body).

VB, on the other hand, shows both springs as having the same part number
(5-5507, page 127).

Any definitive word on whether the two are the same stiffness or
different?

--
Mike
Renton, WA
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