Thread: Xray XB4 thread
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Old 01-08-2016, 02:04 PM   #9950
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I have a quick question regarding FDR. I bought my 15 used and the person before me said he installed metal diff gears. By doing that do I now have a different internal ratio for when I am figuring FDR? Stock internal ration is 2.5 I believe but thought I saw somewhere that the steel bevel gears were different than the plastic ones.
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