I also read that in the catalog. I think there has to be something wrong with that answer. I don't see why an aluminum rocker wouldn't last as long as a steel one, the aluminum is thicker in strategic places to make up for being a weaker metal and the rollers in them should be the same as in a steel. The only possible disadvantage I could see is that the weaker metal could crack at the pivot point or at roller tip.
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65 fastback 347 DFI injected, TFS heads, MSD, cable T5 w/Hurst, 4.11 9", tc subframe conns, custom traction bars, griffen alum. radiator torq thrust D's, and a daily warrior
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