i want to try and develop a more suitable fix for the little plug problem. if you have a stuffed radiator lying about i need to know does the plug under the top left hose have a thread on it or how is it kept in place there? i cant butcher mine to find out as its still in the car. the little plug has a small hex type head on it, maybe 2mm across. i know some models have tranny cooling going from this point and some do not .im thinking i might be able to get a small stainless piece behind it with a small nut tig welded on to it and then marry it up with another small stainless piece on the outside and pull them together with some sealant or adhesive in between. am i going mad by suggesting this or is it worth a try? this could liberate us at the mercy of a new radiator.