Help me identify this part

[Frank]

I was carrying my rig when this fell onto the ground. Anybody know what it is?
I recently had this area tore apart if that helps.

Had to take off the red part and the upper a arm pins to replace the composite suspension mount.

Don't remember seeing anything like that though. Thanks in advance.

 

[Frank]

I apologize. I figured it out. It went under this bolt.

 

[robl45]

Imagine that, you had to replace the same part I did because arrma used a part desgined for a 1/16th vehicle and didn't think it might snap. I was also going to tell you that it went under that bolt. I kept losing those bushings over and over again.