Traxxas TRX4 Axle Disassembly - Portals & Selectable Locking Differentials

Just like a real Diff.....The scale is amazing!!

Your videos are extremely helpful; I kept referencing this video while installing the locking differentials kit to find out all the things Traxxas failed to mention in the "instructions". Thanks!

This is an amazing showcase of the differential and drive shaft components aswell as the axels, amazing video! Can't wait to see the disassembly of the transmission.

The engineering in the portal axles is just amazing. Thank you for your video, def helped in a teardown today.

So helpful. I just picked up a used TRX and it's making weird noises lol. But it was dirt cheap and worth trying to figure out. Thanks.

Very nice video. Amazing to see how far RC technology has come. Thank you for sharing this video.

I have a feeling that if maintenance is not made a priority with this truck, the cable system will go all to hell. I keep thinking of a bicycle brake system, and what a pain it can be if not properly maintained. Thanks for taking on this video Josh. I have been wanting to get a good look at the internals. Thumbs-Up

Great video. Thanks for taking the time to make this. You saved me a ton of time. I just replaced a portal gear and this was a huge help. Thx man.

Your video saved me couple of hours of "finding out / try and fail" as my (pretty) used TRX4 i bought is different from my SummitVXL Model. Thanks for that as well as the professional spoken / short video and perfect instructions. It is now working nearly perfect :)

Hey man, I just broke my Axle housing last night, and this video is a LIFE SAVER. Appreciate you taking the time to do such a detailed breakdown. That all being said, the cable length thing scares me. I’m not sure how I’m going to get that exactly right. You got time for a drive to New Hampshire? Lol

Awesome video! Thank you so much. I am teching a TRX4(first time teching a crawler) right now and this video made it much easier

I have one so thanks for this, Josh. To person below making a comparison to bicycle brakes, I'm a bike guy. I work on IT stuff in a bike company and wrench my own bikes as I have for years. That cable gauge and wrap is ever so slightly smaller than that of high grade bike cables what last for years if taken care of. In short, flow a little lube down the top ferrule once in awhile and pro'lly doesn't need saying around here, don't apply high pressure air/water when cleaning. If you mess with servo placement, etc, mind the bends and check for smooth cable movement and adjust those servo limits. Should be worry-free. It's a ridiculously beefy cable. My worry? That shift horn looks like fragile crap. Mind those servo limits. Not diggin on the plastic diff cup. I took a quick look on the Traxxas site and it appears they don't offer replacement cables. Surprising as they offer everything else down to the screws. Pro'lly on there somewhere but if not just keep packing grease down that thing and it'll live at least 7 years, even with water immersion. It's stupid-beefy for such a small thing. I'm guessing most users will get bored with the lot of it and somehow hack it to permanently locked or there will be aftermarket locking stuff. I've only had mine a few weeks and I'm almost at "Meh, don't see truly useful functionality in this. Just lock it" Still, kinda neat I guess. Nerd factor 7, useful factor 3. I have a few rants elsewhere about how I reduced mine to all lock/unlock vs. that goofy front/rear thing. Bless them for trying? The rest of the axle seems gravy for sure though! Portal are awesome!

Very good video. My TRX4 has been a favorite of mine since the day I got it. It just keeps running and running.

Wow ton of work

Hey Traxxas,its time for an TRX4 axel kit!

WOW~! that's some serious parts going on there.

What a brilliant video. Just got my truck today and your video here is GOLD. Thank you!

I like what I see. I wish you could switch from 4 to 2 wheel drive for some reason, I think it would be cool.

I was able to adjust caster using longer rod ends and adjust😁

Very interesting video, thank you. I hope I never have to disassemble my TRX.