[QUOTE=david lamontagn;118789]The big problem is the shock setup, it's verrrrrrrry to soft, and need stiffer spring, but i can't find a harder set of spring for my shock, so i'll put a set of Ofna Hyper 7 shock at all 4 corner.
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Have you tried the Trinity heavy duty springs?
These springs are what I use on my close to 7 LBS rustler.