re: springs

[Dana Loomis <dloomis@domain.elided>]

Prof. P. Farrell wrote:
>I do have a question for all the spring experts.  Lore is that spring
>length (or ride height, presumably altered by spring length) was raised by
>1" for US spec spiders in 75 or so.  Is this true?  Were spring rates held
>constant, or was same guage coil wire used, just more turns, or just
>different initial length?  

The change was in 1971 and was a way to meet provisions of FMVSS 108
minimum headlight elevation.  The springs are the same, however.  All they
did was put spacers under the spring to raise the car body relative to the
lower spring pan.  

Dana Loomis

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