Hey y'all! Yes, it is true! Rpm 1/10 Durango shock guards, do fit the 1/10 arrma shocks. Now, I did have to sand away some material on the front upper arm. Very, very, little amount, not enough to weaken it at all. I also had to reuse the spacer inside the shock eyelet, and spread the bottom of shock spring a little, in order for spring to sit on shock guard. Still can't believe I have a Rpm part on my arrma granite blx!!! Even if it's just a shock guard, it's a start. Oh yah, those are traxxas big bore shock springs. They're firmer than arrma stock, shock springs.