Can someone help by explaining to me the differences between all the different suspension brackets? I have the serpent 1/8 rtr ebuggy and recently broke one of the rear cheap plastic ones that came stock. (600551 -$6) I've always been a firm believer of you brake it, you upgrade it. So what in the world is the difference between the 3 other machined options? They are all the same price on serpentamerica so I don't know how to decide, and they all seem to be the same. Any help is greatly appreciated. Thanks