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Old 09-14-2016, 03:40 PM   #18256
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you shouldn't need to reverse your motor direction to do MM4 or MM3.
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Old 09-14-2016, 03:56 PM   #18257
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you shouldn't need to reverse your motor direction to do MM4 or MM3.
When switching from 3 gear to 4 you just need to mount the motor plate in the other side arc.
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Old 09-14-2016, 04:02 PM   #18258
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When I built it I just wanted to be done so I took out the 4 gear without moving the motor to the otherside as I had it all wired up already

Adding a 4th gear to the tranny you do need to either reverse the motor or put it on the other side ;-)
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Old 09-14-2016, 05:15 PM   #18259
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When switching from 3 gear to 4 you just need to mount the motor plate in the other side arc.
yeah that is what I was getting at, in that when you mount the motor in the correct method you don't need to reverse the direction of the motor.
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Old 09-14-2016, 11:52 PM   #18260
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If you are not switching the motor plate to the correct side when switching from 3 and 4 gear whether RM or MM you are missing the benefit of doing it!!

The whole purpose is to get the motor spinning in the same direction of the tires in one set up vs the other. Read up on it on the Durango website. No use going 4 gear and just reversing the motor and keeping it on the same side as it would be with three gear. Most sensored motors won't run backwards correctly anyway.
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Old 09-15-2016, 01:17 AM   #18261
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I am somewhat new to the gear diff setup. I noticed the kit gear diff uses 4 planetaries while the RTR only uses two.

Is this simply cost cutting method or is there advantages/disadvantages?

I have a ball and a gear so I'm probably going to run the ball all the time unless they try carpet again locally. I was just curious. Thanks.

Last edited by iDesign5; 09-15-2016 at 01:18 AM. Reason: Typo
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Old 09-15-2016, 06:37 AM   #18262
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I am in the market for a 210V3 but seems like no one has them in stock. What is the deal? Seems like they have been out of stock for some time now.
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Old 09-15-2016, 07:27 AM   #18263
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I am somewhat new to the gear diff setup. I noticed the kit gear diff uses 4 planetaries while the RTR only uses two.

Is this simply cost cutting method or is there advantages/disadvantages?

I have a ball and a gear so I'm probably going to run the ball all the time unless they try carpet again locally. I was just curious. Thanks.
There are some tuning things you can do when running 2 gear versus 4 gear in the gear diff. I don't recall all the specifics though but the general concensus seemed to be that if you wanted better diff action on loose surfaces was to give a 2 gear setup a look, though, you would probably want steel gears at that point.
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Old 09-15-2016, 09:36 AM   #18264
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Quote:
Originally Posted by Cain View Post
There are some tuning things you can do when running 2 gear versus 4 gear in the gear diff. I don't recall all the specifics though but the general concensus seemed to be that if you wanted better diff action on loose surfaces was to give a 2 gear setup a look, though, you would probably want steel gears at that point.
Isn't using two gears similar to using lower weight diff oil? I can't imagine its as strong either.
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Old 09-15-2016, 09:42 AM   #18265
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Isn't using two gears similar to using lower weight diff oil? I can't imagine its as strong either.
From what I am reading yes.

I am also reading that some say to go lighter on loose surfaces, others saying heavier for loose surfaces.

May just have to try to see what i think. If I had a dex210F with its quick change could be easy to do.

For gears what I heard is you want to use the steel gears for sure with a 2 gear setup.
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Old 09-15-2016, 10:43 AM   #18266
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From what I am reading yes.

I am also reading that some say to go lighter on loose surfaces, others saying heavier for loose surfaces.

May just have to try to see what i think. If I had a dex210F with its quick change could be easy to do.

For gears what I heard is you want to use the steel gears for sure with a 2 gear setup.
I tried this last month, always had a lack of steering and was running 7k oil with 4 diff heads. As I didn't have any 3k oil I tried running in 2 diff gears - much much more steering and easier to drive. I will be going back to 4 gears once I get some 3k oil.

I didn't notice any other difference but I'm not that consistent yet and running on a large track so difficult to tell.
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Old 09-15-2016, 10:50 AM   #18267
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cool good info.

I wonder if the increase in steering is probably why people were saying go heavier on loose stuff to make it feel less squirely on the rear?
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Old 09-15-2016, 12:33 PM   #18268
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cool good info.

I wonder if the increase in steering is probably why people were saying go heavier on loose stuff to make it feel less squirely on the rear?
Yes, on grass I think it's medium grip, on looser surface I guess there would be more risk of diffing out. The 4 gear and 7k made it very easy to drive so could see that working in loose dirt.

Interestingly with the lighter diff it had much more front end but no loss of rear grip.

I have read if you go too thick then you almost lock the rear and it ends up drifting. So I guess the correct balance is somewhere in the middle depending on track.
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Old 09-15-2016, 12:40 PM   #18269
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+1, balance for sure will be the key.

Any more news for you guys rocking the exotek chassis?
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Old 09-15-2016, 06:55 PM   #18270
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I plan on running the new Exotek chassis this Saturday.
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