Boo"SS"t

iTrader: (2)

Has anyone here ever used the "Granatelli" lowering springs for f-body 98-02 kit???... Advertised drop is 1.25" front/rear, I'm not sure about the rate.

Major_Lee_Slow

iTrader: (1)

Hence the reason Sam Strano's springs are so popular.

Major_Lee_Slow

iTrader: (1)

Let me clarify my post. From my own personal observations/experiences the spring rates of after market springs were not always readily available, therefore it made it difficult to put together a proper suspension package around these springs. i.e which sway bars, shocks, etc. Some manufactures still don't list their spring rates and a lot of them don't even list the ID and OD's of their sway bars. I guess they just want us to take their word for it that their springs/bars are "better." Of-course one still has to define "better."

I believe that Sam was one of the first F-Body parts vendors that clearly listed/stated what his spring rates are, which IMHO is what made them so popular.

Foxxtron

iTrader: (1)

I agree with MLS above, however I'd like to add this that some manufacturers like us to take their word for being "cost less, but just as good or good enough."

I too fell for that once and decided against purchasing items with vague and ambiguous information when I began to rediscover (revisited my racing knowledge in my mechanical engineering statics and dynamics courses) how suspension works. Whilst materials and/or manufacturing maybe partially considered of "proprietary" information from the manufacturer/vendor, I don't and won't consider spring heights, spring rates to be excused by "proprietary" labeling for consumer applications, regardless of street and/or club racing.