The stock Scx10 II suspension will bottom out by making contact between the trackbar and the axle housing.
On a big jump this could cause lateral stress on the rod ends they were not designed for.
...And if you have a lowered suspension, this will be worse and more noticeable.
Our SCX10 II Max Clearance Trackbar is designed to give you full articulation and compression.
Installation requires M3 Rod ends.
For maximum clearance, we recommend AX80005