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Thread: OG scx10 tranny with 10.3 portals

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Old 11-14-2021, 12:12 PM   #1
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Default OG scx10 tranny with 10.3 portals

Any reason i cant run the 10.3 portals on the originals scx10 transmission? it has a lcg chassis kit.
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Old 11-14-2021, 08:20 PM   #2
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Default Re: OG scx10 tranny with 10.3 portals

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Originally Posted by Hondarider94 View Post
Any reason i cant run the 10.3 portals on the originals scx10 transmission? it has a lcg chassis kit.

I don't know about the 10-3 axles, but I'm running Trx-4 portals under my OG SCX10 Dingo. Only issue I've had was trying to get a little more wheel speed. The trans isn't fast enough for all the gear reduction the axles have. Good luck!!! You can do it!!!
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Old 11-15-2021, 08:06 AM   #3
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Default Re: OG scx10 tranny with 10.3 portals

You can run the SCX3 portals with the 3 gear transmission no problem. I have the good, old 3 gear in my 10.3 and it is a significant upgrade over the stock 10.3 transmission. The gear ratio is kind of a personal preference thing, I like the 80:1 gearing and just run a faster motor to get the wheel speed I want with all the benefits of lower gearing. The biggest hurdle will be getting the link lengths right for the new axles.

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Old 11-21-2021, 04:49 PM   #4
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Default Re: OG scx10 tranny with 10.3 portals

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Originally Posted by AnimalHippie View Post
I don't know about the 10-3 axles, but I'm running Trx-4 portals under my OG SCX10 Dingo. Only issue I've had was trying to get a little more wheel speed. The trans isn't fast enough for all the gear reduction the axles have. Good luck!!! You can do it!!!
what motor are you running? is there enough spur/pinion gears to compensate. id like decent wheelspeed
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Old 11-21-2021, 04:51 PM   #5
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Default Re: OG scx10 tranny with 10.3 portals

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Originally Posted by svt923 View Post
You can run the SCX3 portals with the 3 gear transmission no problem. I have the good, old 3 gear in my 10.3 and it is a significant upgrade over the stock 10.3 transmission. The gear ratio is kind of a personal preference thing, I like the 80:1 gearing and just run a faster motor to get the wheel speed I want with all the benefits of lower gearing. The biggest hurdle will be getting the link lengths right for the new axles.

your running brushless i see. this is going to be a trail truck more than likely. i is there plenty of gearing options?
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Old 11-21-2021, 05:02 PM   #6
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Default Re: OG scx10 tranny with 10.3 portals

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Originally Posted by Hondarider94 View Post
what motor are you running? is there enough spur/pinion gears to compensate. id like decent wheelspeed

I have a 21t trailmaster sport. Going to pic up a 12t and keep the 15t pinion. I live in Florida with a bunch of sugar sand. So a good bit of the time you're fighting it. Wheel speed definitely helps


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Old 11-21-2021, 05:18 PM   #7
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Default Re: OG scx10 tranny with 10.3 portals

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Originally Posted by AnimalHippie View Post
I have a 21t trailmaster sport. Going to pic up a 12t and keep the 15t pinion. I live in Florida with a bunch of sugar sand. So a good bit of the time you're fighting it. Wheel speed definitely helps


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Sweet! so you probably need more wheelspeed then me anyway. how did they mount up? Glad to hear i can lookout for capra, trx4 and 10.3 axles now
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Old 11-21-2021, 05:19 PM   #8
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Default Re: OG scx10 tranny with 10.3 portals

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Originally Posted by AnimalHippie View Post
I have a 21t trailmaster sport. Going to pic up a 12t and keep the 15t pinion. I live in Florida with a bunch of sugar sand. So a good bit of the time you're fighting it. Wheel speed definitely helps


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any pictures?
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Old 11-21-2021, 05:39 PM   #9
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Default Re: OG scx10 tranny with 10.3 portals

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any pictures?



AnimalHippie's Family Dingo

Last page of my build thread has all the details.
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Old 11-22-2021, 07:29 PM   #10
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Default Re: OG scx10 tranny with 10.3 portals

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AnimalHippie's Family Dingo

Last page of my build thread has all the details.
looks good! i think i wanna shoot for capra axles.. wider
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Old 11-23-2021, 05:49 AM   #11
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Default Re: OG scx10 tranny with 10.3 portals

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looks good! i think i wanna shoot for capra axles.. wider

Thank you!


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