Apologies if this is posted in the wrong forum, but I'm tearing my hair out here! I have a Model Slipway Irishman tug which I am in the process of restoring. I am currently at the stage of re installing the RC installation and upon tank testing, I found that water was leaking past the nylon bushings on the end of the prop shaft inside the hull. It is a flanged type bush which has an ID of 4mm an OD of 6.3mm and a flange OD of 8mm. All sizes approximate. Can anyone offer advice as to where I could purchase replacements, as I don't want to have to remove the prop shafts from the hull. I've looked all over the Internet to no avail!