Im starting to smell the faint wiff of alot of work. The heater core in the convertible is leaking. Since its a beater, Im not going to go all anal retentive with it like I did with the 70 GS. I know the trick about drilling the one stud out from the inside. What I was thinking about was drilling a hole with a hole saw in the fenderwell so I could access the speed nut from the wheel well side. That way I could reinstall the nut and then put a plastic cap plug over the hole. My question is- has anyone attemped this? If so, where exactly did you drill the hole and how big was it? Or am I just crazy and I should just drill the stud out?