Traxxas TRX4 Overdrive Gears Install and Test

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This is the first time I have done this!
According to the smart people, having the front wheels spin faster than the rear (with the overdrive gear set) helps the truck turn in a smaller circle and helps the truck pull the rear tires when going uphill.
I decided to give this a shot and see what happens on my TRX4.
In this video, we install the Traxxas front overdrive gears (part number TRA 8287) and then give it a test!
Want to get these gears for yourself?
Pick them up here: amzn.to/33nNkeP
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Music provided by T2NATE - go check out his other work: / @t2nate137

Опубликовано:

5 авг 2020

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Комментарии : 56

@Serial_Enthusiast 3 года назад

I just did this job by following your video and got the job done with no issues and everything worked on the first try! I had a few extra steps because my fenders were in the way of the top screws for the c shaped brackets that hold the portals, but that was easy. Thank you!!!

@RoadsideRC 3 года назад

Great! Really glad to hear this. I always appreciate hearing that this work was helpful. Thank you!

@sprather84 4 года назад

Awesome job my friend i love your vids best looking sport on RU-vid the wrap is amazing 👍 running the overdrive was probably one of the biggest noticeable differences I did to my truck out of all the mods and upgrades

@RoadsideRC 4 года назад

Great! Thank you for the compliment. I sure am happy with how it is doing with that gear in there.

@nicolaemates 2 года назад

Great video. I just received this upgrade, and this video makes it look easy to install. Thank you

@RoadsideRC 2 года назад

Glad it helped

@nelsonmercado4594 3 года назад

Thank you for your video. Great job.

@RoadsideRC 3 года назад

Thanks! Glad it was helpful!

@islandrc-duke1972 4 года назад

Great mod and video

@RoadsideRC 4 года назад

Thank you!

@TrekRC 4 года назад

Nice little upgrade 👍

@RoadsideRC 4 года назад

Thanks!

@devon8419 4 года назад

Nice man

@RoadsideRC 4 года назад

Thank you!

@KurtsRCs 4 года назад

Nice upgrade, if you only do the front over drive it does not help that much but if you do the under drive in the back also it help a lot, The truck is looking sweet

@RoadsideRC 4 года назад

Thanks! Yes, I am weary of doing both over and under since I do a bunch of trails with this truck also.

@ruftime 4 года назад

Nice Upgrade! I start and stick with rear underdrive(12%) for my less technical trail/crawlers.....I'm always looking for less top speed and more throttle resolution. My serious crawl truck runs 30%.....2.low trans. but makes it a less capable truck overall...except for just pure hard line crawling😁 You guys should check out 1tenth scale SOA in metal from shapeways.....it's a pretty darn cool and solid piece and is a 4 link set-up. I'm using it on a Brazin ATL trx4 build. Then you can run a smaller super low battery (850 3s) up front where the servo currently is. Happy crawling boys!

@RoadsideRC 4 года назад

Thanks - I appreciate the tip. After trying this gear, I really am thinking if throwing the underdrive in the rear also. But, I do tend to do a bunch if trail stuff, so figured it would be too much. Thanks!

@gadgetmantwincities 4 года назад

We have overdrive and underdrive in ours and if you drive the truck for to long the motor gets pretty hot! So keep an eye on temps.

@RoadsideRC 4 года назад

Thanks! I am hoping that if I use only the overdrive that it will keep it more tame.

@thor_4017 3 года назад

Overdrive front axle is great in summer conditions. On packed snow/ice it's not the best. Ones you start spinning on the front wheels the rear wheels will lose traction easily. It's easier to modulate the throttle and search for grip with the same gearing on both axles.

@RoadsideRC 3 года назад

That makes sense! I don't get a lot of snow/ice around here.

@cesco_rc 4 года назад

Great video. Traxxas seems to advise to upgrade to when you do this 11% overdrive mod to upgrade the 8279 in the rear to the machined 8279R. Which doubles the price of this mod. Did you experience any troubles using 8279 in the rear? The quote from the Traxxas website: "Note that 8279R duplicates the TRX-4’s stock axle ratio. But since overdriving the front axle places extra strain on the drivetrain, the machined-steel construction of 8279R is recommended."

@RoadsideRC 4 года назад

So far, no issue! I have driven the truck a handful of times since with literally no issues. That note from Traxxas is interesting since I also hear many people doing the overdrive front AND underdrive rear gear set. Think about how much force that would put on them then. If I have trouble with it - don't worry, there would be a video out! :)

@B.K._BerndK. 3 года назад

Nice 👍🏻 😍 👌🏻

@RoadsideRC 3 года назад

Thank you!

@nobodyspecial...4680 3 года назад

Nice, I run overdrive and underdrive on mine. A bit of weight at the front and you’ll probably make that wall, seems like you’re at the point where a TRX starts to tip backwards due to the geometry. If you’re interested I did a video on how to adjust the front and rear geometry to climb up steep things easier?

@RoadsideRC 3 года назад

Thanks! I went to check out your video, but I do not see it on your channel. Can you direct me there?

@nobodyspecial...4680 3 года назад

Roadside RC aah yeah sorry, this is my watching channel (and my old drone one). Video is here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-PCyywxGddVI.html Really liking your journey it’s nice to see someone taking a nice route and testing it. Wish I had the chance to drive your course as it looks amazing!

@blackwolfrc 4 года назад

I see moving the bumpers around helped

@RoadsideRC 4 года назад

It sure did! Cheapest and best upgrade!

@RichD 4 года назад

This makes sense. Soon you will have to call this the TRX400 dollars in upgrades 😀

@RoadsideRC 4 года назад

Fortunately, not quite that much!

@cyclorando3559 3 года назад

Thanks for your answer. Is it really an added value for you ?

@RoadsideRC 3 года назад

These overdrive gears have been useful, yes!

@gegerc3689 4 года назад

💪🏼💪🏼

@RoadsideRC 4 года назад

Thank you!

@gegerc3689 4 года назад

😎😉

@cyclorando3559 3 года назад

Thanks for your tips and upgrades. What is the best upgrades for the trx between : overdrive/underdrive or shocks tower angles ?

@RoadsideRC 3 года назад

The shock tower angles is very cheap, so I would start there.

@danialirfan8847 Год назад

Whats the T in front that you use? is that 12T/33T?

@RoadsideRC Год назад

It is these: amzn.to/3qnxXR0

@jrc-fabs1634 4 года назад

4:46, adjust the wheelbase and maybe you can do it, also those orange grip things that traxxas makes you could do it

@RoadsideRC 4 года назад

Yes, those sand ladders would make a huge difference.

@jdssurf Год назад

How does this not put strain on the stock rear? Also, what’s the benefit?

@RoadsideRC Год назад

Overdrive helps with turning radius, and helps with climbing. I really enjoy it. Folks seem very worried about damage/wear, but it just is not a problem at 1:10

@jdssurf Год назад

@@RoadsideRC doesn’t it seem like the back tires would be dragging if the fronts were pulling it faster, on flat surfaces

@RoadsideRC Год назад

@@jdssurf Yes, it 100% induces some level of slip. Sometimes in the front tires, sometimes in the rears. Just basic physics means there has to be some, when the wheels are turning different speeds. I suggest you give it a shot and see what you think. There aren't enough forces going on here to hurt anything.

@norhermanahmad4321 2 года назад

Install rear only or rear and front?

@RoadsideRC 2 года назад

This was front only, since it was a rather aggressive overdrive. I might put the underdrive in the rear soon to really see the difference.

@bobbymcgee901 2 месяца назад

Does someone make a more sleeker looking portal axle for the trx4

@RoadsideRC 2 месяца назад

Not that I am aware of, no. Honestly - the sizeof it has not been an issue for me.

@bobbymcgee901 2 месяца назад

@@RoadsideRC Neither do I. Purely for cosmetic purposes. There’s so many options for the trx4m but absolutely nothing for it’s weird

@timhunter1678 2 года назад

Wow were you lucky it wasn't a unlocking diff. I just did one of them and it was much more involved UGH

@RoadsideRC 2 года назад

Yes! I skip all of the unlocking and 2-speed features. Just added weight and complexity

@timhunter1678 2 года назад

@Roadside RC I should do spools and remove everything because I don't use it enough anyway. Your color scheme rocks too BTW. I'm glad I dug into it though because some water got to my bearings. Luckily I got them back to normal with oil but they were dry and a little rusty.