There is no 3.55 pumpkin from FRPP. It only comes with 3.73s. You could try buying a 2003 Cobra pumpkin, but you would have to convert it from 31 spline to 28, and you'd have to change the pinion flange on it.
This will get you pointed in the correct direction...<br>
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When you take the cost of a set of gears, new bearings, new clutches for the limit slip, new pinion seal, assembly cost, these are a good deal. One top of that, you get a hd aluminum housing.
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