First-Look & Install: Traxxas TRX-4M 2-Speed Transmission (9891)

[@shanenordrum8482]

I’ve had one in my high trail with portals and 70mm tires and I love it. Had it in for a month or so now.

[@mpampis_o_fou]

Nice video and the most beautiful bronco Trx4m I have seen!

[@rcnewb]

Thank you for the compliment!

[@streetgangtm]

I just bought one and installed it with my furitek cedar and absolutely love it. It's bonkers in high gear on 2s and 3s is just obscene. Absolutely perfect blend between the stock and crawl gears for the low gear. In fact I wish traxxas offered the 32.7:1 ratio as a gearset on it's own. Unfortunately my bronco is uber scale with an interior so it's a no go as it's way too tall compared to the stock transmission. I also tried to put the 2 speed in my injora tarantula to no avail- unless you basically reconstruct an entire front end the shift lever gets in the way of the front hood and suspension. It's probably a no go for the Meus Ripper as well.

[@slomofan2070]

Thx, helpful, because of the needed Place when not stock

[@Max_Imilian1]

Hi, schönes Video. Was sind das für Felgen auf dem TRX4m Bronco?

[@rcnewb]

Thank you! They are the Traxxas Method Beadlocks (plastic).

[@tuna3461]

I wonder how it performs with the Injora motor. I’m probably gonna get one but I imagine even with the high gear ratio the 87t is still not as fast as the 48t. At least that’s how the motors felt to me

[@rcnewb]

That's what I'm wondering as well. I'm going to keep the Titan in it for a few test drives but I think an Injora 180 Pro will find its way into that transmission sooner or later. Maybe my High Trail won't be the beneficiary of a motor upgrade after all. :)

[@The_RC_Guru]

48 will be faster with less torque, and the opposite with the 87. Honestly if the high speed w 87 is good enough you’re better off keeping it in

[@shawnserediak6783]

The 48 is by far more powerful. Torque is improved as well. Best upgrade I did. WAY BETTER in everyway

[@The_RC_Guru]

@@shawnserediak6783 nah. You just aren’t experienced with brushed motors or have confirmation bias or can’t understand the concept of how brushed motors work. That’s all.

[@The_RC_Guru]

Sounds a little crunchy

[@rcnewb]

It’s noisier than the stock transmission (or any other single speed), but I think that’s due to the additional gears and more moving parts. Mesh seems to be set correctly.

[@jefflee1698]

What is the trick to bind to the mt12. I’m having trouble binding mine.

[@rcnewb]

I found a Reddit post that had some useful steps regarding binding the MT12 with the Traxxas receiver: www.reddit.com/r/TRX4M/s/E6QUQ9a0tN

[@dallasdelano8235]

How do you install the high speed gears onto the 2 speed

[@rcnewb]

Based on what I’ve seen, you can open the transmission case and swap out the standard “normal” gears.

[@dallasdelano8235]

@@rcnewb yes I did it, it’s not hard to do. It’s good but not that much power only top speed

[@fyego]

Hi! Can you tell if this new trans gears are mounted in ball bearings or bushings? Thanks!

[@shanenordrum8482]

Comes with bushings

[@rcnewb]

Thanks!

[@IsaacAltmann-n7l]

This vid didn't really help me install it

[@rcnewb]

Sorry to hear that.

[@Cormano980]

I've gone the cheaper way, just ordered the low gear set and leave it like that, can't afford to pay a midget to change the gears for me

[@rcnewb]

Lower gearing is a good approach too. I’m running that in another TRX-4M and like how it performs.

[@Cormano980]

@rcnewb yeah definitely, I'm not gonna go overboard with upgrades for this project, I've got it for park fun and ease of carrying around, mostly I do tanks and amphibious vehicles which are a pain to lugg around

[@RCfanAddict]

This is laughable!

[@rcnewb]

Sorry you didn’t like the video.

[@RCfanAddict]

@rcnewb Great video terrible product. Sorry I should have been specific

[@i-destroy-my-paper-boats]

I kinda want this