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Thread: Fallen's Ultra 4 UDR

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Old 02-10-2021, 08:56 PM   #1
Rock Crawler
 
Join Date: Apr 2015
Location: San Marcos
Posts: 658
Default Fallen's Ultra 4 UDR

I know, I know, it's a Traxxas and not a custom build, but please tolerate my blasphemy. I've wanted to make this conversion since I saw the UDR, and my son's love of racing his Yeti against my UDR pushed me to it.

Anyway, there's a lot of changes afoot but I'm mainly posting this in the hope that if others start doing them and posting them, hopefully the aftermarket will pick up and make some U4 parts for the UDR.

I've shortened the chassis at the front and rear. I think the photos will explain that step. I'm also going to be Silly Puttying my front diff.

Enjoy the photos. Any questions, ask away.









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Old 02-11-2021, 08:14 AM   #2
I wanna be Dave
 
Join Date: Jan 2016
Location: california under the rock im crawling on
Posts: 4,258
Default Re: Fallen's Ultra 4 UDR

cool cant wait to see it racing that yeti
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Old 02-11-2021, 06:42 PM   #3
Rock Crawler
 
Join Date: Apr 2015
Location: San Marcos
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Default Re: Fallen's Ultra 4 UDR

Yeah, same here. I've raced Ultra 4 style races against my son's Yeti twice now, but DNF'd both times.

I'm fully rebuilding the drivetrain to make sure that doesn't happen next time.

In our last 20 lap race, my son was 1 lap ahead of me when I DNF'd. It's a very rocky trail, so maybe we need more desert section.
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