Drive cup issue

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uberfinity

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Arrma RC's
  1. Fury
Well this is lame...
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What size would be acceptable and not introduce any binding?
 
Hi

Some of the guys here on the forum are using HPI dog bones. I'll take a look and see if I can find there posts.
 
I wonder if the cups are any better from HPI and if they are compatible with the arrma diff...
 
Mine were getting chewed up like that when I was running blown out orings in the cups. New orings and no more damage. And you have to pull them out to really tell if they are damaged.
 
Here is the stock measurements, looks like 80mm
Mine were getting chewed up like that when I was running blown out orings in the cups. New orings and no more damage. And you have to pull them out to really tell if they are damaged.
I would say this is considered "chewed up"
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That is exactly what mine looked like when I was having issues. They are 1.99 a set so I stocked up and replace them on the regular. That is also a point they recommend oiling after every pack which I have now started doing and it seems to help them live longer.
 
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