The SPC's have a larger washer increasing the adjustment range. I was able to get to -2 camber and 1/32" toe in without them, with them I now have -1.75 camber and same toe in. Could probably get less camber if I wanted to.
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 Swift Springs|265-305 RE-11|Forgestar F14|F.I. TDX S.S. 12" Res."Milled Out"|K&N|SPL|Z1(34 row)oil cooler|Z1 brake upgrade|Hotchkis Zspeed|Team Voodoo|HPDEjunkie.com
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