Quality CNC 1/10 RC Crawler Frame Cross Member.  Add stiffness and stability to your 1/10 RC Crawler Rig with this aluminum cross member.  This usually bolts onto the rear of the rc frame but can be placed anywhere if you drill the proper holes.  Includes threaded holes on top for mounting of battery tray, etc.
 
Fits 313mm RC Frames, SFTRC 1/10 Frame and SCX10. Slightly modification to your frame may be needed.