INJORA Stainless Steel Drive Shaft for TRX4M Defender Bronco Upgrade

The shafts look great and fit perfectly. The issue is that the pins that holds the universal joint together slids out of the shafts. I am able to slide them back in, if I catch it in time. But they will be useless when one falls out and I can't find it. Injora makes great parts, but these are not up to their standards. I only ran 2 battery packs on them. I do have the Meus two speed transmission, but it's usually in low gear crawling. They should not be failing so soon. Injora customer service did respond to me, and send out a different set. I would recommend a different set of dive shafts.

Great condition fast shipping and good quality. Fits perfectly

Perfect fit with Injora transmission. Adds a bit of weight to bottom of truck. Semi easy to install needs a bit of disassembly of truck, but not too bad. Much better price than OEM upgrades I don't see these breaking with a 180 motor. Smooth driveline joints definitely a performance upgrade. Just be sure to line them up the proper way, if they are off in the timing they are grindy. You need to line up the “ears” of the driveshafts.

Upgraded the rest of the driveline so I shouldn’t have been surprised when the old ones broke.

The pin fell out, replacement was sent and is working fine they have very good products and I have purchased many with no issues will continue to purchase there products.

You've gotta use a little force to get these attached to the gears correctly but other than that they seem bomb proof. If i find a way to break these I will be mind blown and I'm running a pretty high power setup on my TRX4M (brushless 3S) I'd buy them again for another build for sure. Nice work Injora!

**Update** The supplier reached out to me and promptly sent a new replacement drive shaft free of defects. Due to the excellent customer service, I updated my rating but have left the original text below for visibility. Original review: The front axle side u-joint failed, causing minor damage to my motor. It may be due to an incomplete machining as seen in photo. I ran the stock plastic drive shaft for almost half a year of consistent driving before it had a fatigue failure. This drive shaft failed after just a few short drives with no abuse. I normally like injora parts, but this is a bad drive shaft.

Great fit for the trx4m, these perform far better than the factory axles with far less bind at full suspension articulation. Great value for the performance gain. These add some weight down low as well for added crawling performance. Easy to install, took less than 30 minutes.

Fit my bronco trx4m perfectly

Ottimi upgrade di casa Injora, perfezione e qualità super. Piccoli alberi di trasmissione fatti benissimo e con precisione veramente alta. Nessun problema per il montaggio, molto veloce e facile da montare sul proprio modello. Consiglio sia upgrade che il venditore professionale e molto veloce nella spedizione. Ottima esperienza 👍🏻

Nice and works perfectly fine, no more stripping

Passen einwandfrei!! Top Produkt!

うーん、なんか遊びが大きいし、ボルトは弱いし、うるさい感じなので純正に戻して終了。もう付ける気は起きないかな。