ORIGINAL: chasehq
Same as the RTR, it's where the arms connect to the hubs where the wheel bearings sit that have pins with e-clips.
Still like I said in my SS kit there were no suspension pins that had E clips. They may have changed it. Go to HPI's Site and look at the SS kit manual page 9 step 6. It's a screw pin with a nyloc nut that came in my kit. The skid I was referring to (that closes the pin ends off for the a arm to bulkhead) is actually on page 11 Step 9.