I bought a couple of sets of these shock after reading the reviews and noticing the chassis keep hitting the ground when the car landed from jumps etc.
Gotta say, it's a real worthwhile upgrade, the car handles so much better, feels much more sturdy and there's no belly slap on landing. It's very easy to swap them by simply undoing 2 screws at the top and bottom of the shock. I wound the adjustment nut down on each shock to the maximum firmness setting for a rigid ride. RCGeeks shipped the items quickly and they were well packaged, just like they have done with all my previous orders. 5 stars from me! * * * * *