Steel driveshafts for the TRX-4M

I had never snapped a driveshaft before... and it will never happen again with these beefy steel ones!
Here are the actual ones I have: upgraderc.be/en/collections/t...
Enter the Coupon Code RCWB110 and get 5% off!
You're welcome!

[@Turtlefry]

I didn't know about the knuckles needing to be alined. At the speed of these crawlers, does it matter? Do I need to pull my metal driveshafts to fix this?