Traxxas TRX4 Sport Kit Build Series - Upgrade - TRX4 Underdrive Gears and LCG Battery Tray

Here's another upgrade that I've been holding on for a little over a year.

Traxxas 8288 Underdrive Gear Set (eBay)

Opening up the axles...

Another look at the underdrive ring and pinion gears.

Axle back together. Pretty simple job.

Here's another thing I updated. I found a LCG battery tray off of Thingiverse. Now that I have a 3D printer, I decided to give it a shot.

Here's the stock setup.

Here's the LCG battery tray.

Comparison of the two battery trays

LCG battery tray fitted and installed.