Yes, the revo shafts are better than UE driveshafts. Metal driveshafts are solid and transfer power great, but it transfers it to the gears and any weak point in the drivetrain. The plastic shafts are great, they mellow out the hard drivetrain hits. If you beef the tranny way up, and the diffs, and the wheel hex's....you will then start breaking the UE driveshafts, where a revo shaft would hold up fine. Robin will tell you they are gold and his "analysis software" says they a 50 billion times stronger than anything ever made, but welcome to the real world...the revo shafts are better. :027: Same goes for any brand cvd, but since you mentioned ue....but the traxxas ones will be the same.