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Old 01-24-2020, 03:03 PM   #1
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Default Underdrive gearing for ar44

Does anyone have a part number of underdrive gears for my wraith 1.9 with ar44 axles? I can only seem to find overdrive gears for some reason.
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Old 01-24-2020, 03:44 PM   #2
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Default Re: Underdrive gearing for ar44

Axial makes an underdrive gear set AXI30402.
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Old 01-24-2020, 03:48 PM   #3
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Default Re: Underdrive gearing for ar44

Yes that's the part number I have which is way to big for the rear diff on the ar44 axles
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Old 01-24-2020, 03:55 PM   #4
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Default Re: Underdrive gearing for ar44

I thought they were compatible with that axle, so????? I thought SSD made an underdrive set too but I couldnít find anything when I looked. Hopefully someone knows of one because now Iím confused.
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Old 01-24-2020, 04:09 PM   #5
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Default Re: Underdrive gearing for ar44

I only know of Overdrive gears for the AR44 axles not any underdrive.

As far as overdrive gears, your options are....

1. Boom Racing - Asiatees
2. Hot Racing - eBay
3. SSD RC - eBay
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Old 01-24-2020, 04:21 PM   #6
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Default Re: Underdrive gearing for ar44

I'm guessing its the same principal going overdrive in the front as as opposed to underdrive in the rear? Any one of those brands better than the other? Also do I need any other parts or will that bolt up to my stock diff internals?
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Old 01-24-2020, 05:05 PM   #7
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Default Re: Underdrive gearing for ar44

Underdrive would require a larger ring gear which isn’t possible with AR44’s, or a smaller pinion which would be weak since it’s so small. Overdrive is available and the only option.
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Old 01-24-2020, 08:17 PM   #8
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Default Re: Underdrive gearing for ar44

Thanks for clearing that up
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Old 02-18-2021, 04:37 AM   #9
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Default Re: Underdrive gearing for ar44

https://www.asiatees.com/display?Mis...d=185383&pid=1
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Old 02-18-2021, 12:13 PM   #10
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Default Re: Underdrive gearing for ar44

....since you're bumping a year old thread...
These came out last year and I've been running them without issue: https://www.vanquishproducts.com/ar4...ar-set-33t-8t/
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Old 02-18-2021, 04:32 PM   #11
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Default Re: Underdrive gearing for ar44

Quote:
Originally Posted by TheLetterJ View Post
....since you're bumping a year old thread...
These came out last year and I've been running them without issue: https://www.vanquishproducts.com/ar4...ar-set-33t-8t/



x2

Vanquish part# VPS08331
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Old 02-22-2021, 12:06 PM   #12
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Default Re: Underdrive gearing for ar44

Quote:
Originally Posted by 2wheeler View Post
x2

Vanquish part# VPS08331
I have this installed in my one piece axial ar 44s
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Old 04-25-2021, 12:32 AM   #13
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Default Re: Underdrive gearing for ar44

Any video to see the difference speed rotation with front stock and rear with underdrive gears?
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Old 04-25-2021, 08:08 AM   #14
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Default Re: Underdrive gearing for ar44

Quote:
Originally Posted by Taper View Post
Any video to see the difference speed rotation with front stock and rear with underdrive gears?
I am running mine with the 12% additional under drive from the Enduro trans.

With the vanquish every 9 turns in the rear will about 10 in the front. Less than I would want for comping but fine for the trail.
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Old 04-30-2021, 04:20 PM   #15
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Default Re: Underdrive gearing for ar44

Quote:
Originally Posted by Taper View Post
Any video to see the difference speed rotation with front stock and rear with underdrive gears?
I've had the vanquish underdrive gears sitting on my desk for weeks now, waiting to go in my UMG10. Maybe this is a good excuse for me to install them this weekend. PM me an email and I'll try to send some relevant before/after video. I don't think there's gonna be a drastic difference, though.

Last edited by DRED805; 04-30-2021 at 04:27 PM.
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