yeah i thought about that and measured the diameter and bore hole with a caliper, the rod is smaller than the hole and so just that plastic part would be hitting the m/c piston, which if i didn't look closely, probably would have worked for a few stops and then cracked and brakes went out.... anyways i picked up one at my local parts store today for $30 with core and its the same as my old one except no bleeder screws... anybody know the best way to bleed the system ?? thanks everybody for your help, i appreciate it !!!