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Old 02-02-2012, 10:46 PM   #1
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Default GEAR OR BALL DIFF?

hey guys
I was wounding what the difference is between a gear and ball diff?
and which is better?
I have a TRF415msxx that i run a 21.5 motor on and I'm running a ball diff but thinking about changing.
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Old 02-03-2012, 03:12 AM   #2
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Quote:
Originally Posted by tomicamilleri View Post
hey guys
I was wounding what the difference is between a gear and ball diff?
and which is better?
I have a TRF415msxx that i run a 21.5 motor on and I'm running a ball diff but thinking about changing.
Maintenance or lack there of in a gear diff and another tuning option. In my opinion you could do with out the gear diff running a 21.5 motor. If you do decide to upgrade to a gear diff, I suggest you go to the Tamiya TRF415 thread and start at page #1399 post #20978 for some info because there's a lot involved in getting a gear diff to fit in this car. Good luck.
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Old 02-03-2012, 03:26 AM   #3
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thnks ill go check it out
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Old 02-07-2012, 12:16 PM   #4
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It used to be that the ball diff was a better choice but I see that now things have changed.
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Old 02-07-2012, 12:21 PM   #5
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It depends on the car's balance, switching between a rear gear diff/ball diff when I had a photon was more dramatic than it is on my xray. The ball diff will square up out of a corner better, but the gear feels a bit more free overall, I have started switching it more often vs changing say a rear shock position.
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Old 02-15-2012, 03:49 AM   #6
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I think after a little experimentation, I would have to say that maybe a ball diff in rear and a gear diff in front is not a bad setup - although the fact that HPI made their ball diffs adjustable externally is a great plus!
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