If you own this monster truck, odds are you need to keep at least one of these around! I looked at a few sites trying to buy a replacement, but their prices were outrageous for a 1" piece of plastic that would likely break again anyway! So, I ended up 3d printing a replacement for my son, then when he invariably broke the other side, I decided other people could benefit from this. It's such a fun truck, it's just a little too fragile on these axles.
I want this to be a functional solution first and cost effective a close second. If you have any trouble, please contact me and I'll make it right.
I'm making these all the time, so if the quantity is ever 0, just give it a while and there'll be more soon!
*UPDATES - see new pictures, too*
These are 3d printed using PLA plastic with 100% infill (it's a solid piece of plastic when it's done) and it fits just as well as the original. I've made some revisions to the model, including a 'pilot' hole to ensure it's drilled out as straight as possible. Then I use a slightly larger heat insert to melt the top of the hole and ensure an easy start, then I'll clean up any excess by hand. I've also found some screws that are the same size and length (but fully threaded), just in case your original is stripped. In working on this, I ended up stripping both screws on both axles of my son's truck since the screw heads are just about as fragile as the axle was!
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These may come out a bit ugly or imperfect, but they are strong and will still fit! I do a 'break test' by hand on every one of these once it's drilled and ready to go out, I've not succeeded yet. I only had success on a test model that was at 40% infill, and even then I had to use a pair of pliers to eventually break it.
I will be printing these in whatever color I have on hand, as you can't see much of the part once it's installed. If you'd like a specific color, please let me know and I'll try my very best to accommodate. I could also spray paint the exposed piece if I can't otherwise accommodate the color you've chosen (please let me know if you'd like this, I won't paint the piece otherwise).
**THE FIX**
Finally, how do I get this piece on the truck?? Fortunately, it's an incredibly easy fix and only two screws total! One still inside the tire, and another holding the steering arm to the wheel hub. Easy!
Please see the pictures, I have circled in red the screw to remove for the steering arm. Once this screw is out, the broken axle and steering hub should be able to spin all the way around, slide the new one in, spin it back, and reattach the steering arm. Finally, put the wheel back on the new part. Now have a blast and let 'er rip!