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Oil Pump Shafts

Mike67

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Im confused here, Milodon has two shafts listed one is 8.5 long (21520) & one that is 8.187 long (21523), both listed as for a RB??? Can someone tell me why they are different lengths for the same application???
Thanks
 
Mike I'm pretty sure that longer one fits with milodon's oil pumps, the one in my regular melling-fed 440 is using the shorter driveshaft, but they are both for the RBs
 
I called about this myself, and as stated, one is for the Milodon pump
 
I thought the HV pump had a thicker rotor and required longer bolts and maybe needs a longer shaft?

The body extends outward about 0.250", and the internal side stays the same. The shaft is for the Milodon pump.
 
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