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HTs Ultimate TRX4M

HVACTeacher

Rock Stacker
Joined
May 12, 2025
Messages
61
Location
Canda
Hey everyone!

When the TRX4M Bronco came out I really liked the looks of it. I suppose its because I like the new Broncos but would never personally own one (No offense to anyone who does, if my wife wanted it I would back it in a heartbeat). I also wanted something I could fit in a small hardcase, kinda like the size of a lunch kit.

I started out initially happy with my purchase. Yes, it seemed underpowered but I liked the foundation. I set out to replacement basically everything on it with TRX accessories, eventually swapping some out for other brands (aluminum for brass, wheels + tires, etc.). I tried the TRX method wheels with their tires and weight sets.

I also picked up some RC4WD Black Rhino Armory wheels and Goodyear Wrangler MT/R tires. I wasn't happy with the performance so I went away from scale and bolted up a set of Mud Slingers.


I had came across Furitek's Lizard line while scrolling and wanted to give it a shot. I also wanted to up the voltage to 3S. I removed everything, esc, servo, motor and began laying out new components. I built a shelf out of left over Lexan to place the RX on over the rear axle. I then stuck the Lizard ESC on top of that. I brought it to my LHS to show them this new Furitek stuff, at the time they had never seen it in person. They're now a dealer :cool:

I used the truck on and off but I wasn't happy with the electronics. I decided I wanted to stuff a larger can in there to help bring temperatures down.

I tried other motors by Furitek but I wasn't satisfied. After careful consideration I opted for a Hobbywing motor that would just fit in there. The turns are lower than what I would like, but on 2s it works great! Temps are low and there is plenty of wheel speed when needed. I had to completely redo the electronics layout, but it's worth it.

Another thing that I started to mess with was the lights. When I switched the body from black to white I left the pro scale (?) light kit in the black body. A Canadian company sells a light controller to be able to reuse that kit so I ordered it up and swapped those in. Some other updates and upgrades are some parts from LGRP.

I ordered up a set of wheel and tires to try. I threw them on a few weeks ago but they were definitely the wrong tire for the terrain. It was a place I hadn't crawled before, I usually go to a quarry. This was close to my new house which was better than a 45 minute drive. Unfortunately it was soft sand and the TRX4M wasn't much fun to try and drive with pin tires. :(
 
Quite a difference in tires lol but I'm sure those mud slingers offer much better performance in a wider variety of terrain. Looks like a little beast as it sits currently.
 
Huge difference!
But in this loose dirt/sand the other tires were pretty much useless. :(

There are changes I want to make after running a few packs through it. The rig needs more weight overall. It was really tippy on side hilling and the rear is light.

I ordered a brass center skid with a parts order the other day, this rig will get that. Based on how it performs after that upgrade will determine what I do next to it.
 
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These little trucks are so fun to modify and run. They're just cool. Perfect "lunch kettle crawler".

100%

With the limited running time I get these days it's nice to have some tiny guys for traveling or messing around in the backyard.
That hardcase pictured above I picked up at a local "surplus" style store. It's the perfect size for the TRX4M's; you can fit the truck at the bottom with a foam section to protect it, then the transmitter on top.
 
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