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Thread: How to lock TH transmission in high gear?

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Old 11-02-2017, 02:16 PM   #1
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Default How to lock TH transmission in high gear?

Are there any write ups on how to lock Twin Hammer's transmission in high gear? I am tired of burning servos for the low gear that I never use. I want to lock the trans in high gear for speed. I read that there are some spacers that need to be added but I am clueless without instructions.
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Old 11-03-2017, 01:39 AM   #2
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Default Re: How to lock TH transmission in high gear?

There must be simpler ways, if your really only want high gear, but what I use is the Scorched Parts 3D printed gear change lever that replaces the need of a servo altogether.
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Old 11-03-2017, 04:17 AM   #3
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Default Re: How to lock TH transmission in high gear?

Itís a direct bolt in replacement for the servo. You would need to trim some of the interior away to use it.

https://www.shapeways.com/product/G3...ionId=59997579
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Old 11-03-2017, 03:05 PM   #4
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Default Re: How to lock TH transmission in high gear?

Thanks guys. I will keep that solution in mind though for $24 shipped, it is a bit expensive vs free zip tie to keep the lever in high gear.
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Old 11-07-2017, 07:13 AM   #5
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Default Re: How to lock TH transmission in high gear?

An update: I took the transmission apart and following manual, I was able to add 6.5mm spacer to lock the transmission in high gear. I just needed to find a plastic tube that snugly fits the shaft and cut it to size.
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Old 11-07-2017, 08:05 AM   #6
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Default Re: How to lock TH transmission in high gear?

Try nitro fuel tube... you may have some on hand if you have nitro cars
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