I just drilled the weep hole since I had to replace a leaking clutch line anyway. Rotted out just under the rubber at the banjo bolt by the way. I had a little oil inside the cylinder but cleaned it all up before I checked to see what kind it was. I believe it was transmission since the bottom of the seal was a little wet. Can I test the slave to see if it will leak? I have a 2005 with 32k. Also is there a more resistant seal to synthetic I can purchase?