Traxxas TRX-4 Bronco Project

I already own a TRX-4 Bronco so there was really no reason to buy this.  No reason except that body is so incredibly excellent.  I convinced myself that it would be good to have two different model years of the Bronco.  I had some rationalization but I can't even remember what it is now.  Doesn't matter.  Now I own it.

One thing I did differently with this 2021 Bronco compared to my previous 1979 Bronco was to immediately tear apart the whole model before even driving it.  This allowed me to build it as a kit and enjoy that experience.  I don't regret it.  I am much more attached to the model now.  I also added the excellent Pro Scale lighting kit and winch, but other than that this model is completely stock.  One thing that is new for this model compared to the old model is the clipless body mounting system which completely hides the mounts beneath the body and integrates them into the inner fenders.  This is something that works perfectly and should have been done a long time ago.

This is a 1/10 scale trail crawler with 4WD and 4-link suspension, but it is unusual in many ways.  Firstly, it has portal axles which increases ground clearance.  Next, it has a two speed transmission with high and low range.  Finally, it has remote locking front and rear differentials.  This means there are 3 tiny switching servos in addition to the steering servo.  The 4 channel transmitter allows the normal throttle and steering control along with a 2-way switch for the transmission and a 3-way switch for the differentials.  The modes are: all open, front locked, and all locked.  Another handy feature is "cruise control" which will allow the truck to go at a fixed throttle setting with no transmitter input.  Contrary to most of my builds, I actually retained the RTR radio to make use of those extra features.

Update:  This model was destroyed in the 2022 fire.  It has not been replaced.

Page 1:  Re-Assembly

Page 2:  Upgrades!

Page 3: Final Photos