I know someone that had them on there 12V. Didnt keep them very long not sure exactly why. I do know that they are (at least his were) extreamly soft.
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00 2500 4x4 5spd, Balanced & blueprinted, Rings&Studs CR Head W/P&P, All ARP, HD Big Stick, 110# Valve springs, Coated pistons & bearings, S&B, Intake horn, Header, 5" TB, Edge J W/A HOT, GT3788R, 120HP stix, FASS, ValAir DD, Fluidamper.