I have a set of used Koni struts that came off a 75. Are Koni's stock and are they rebuildable? I'm mainly curious but on the other hand, I have no use for them and am also curious if they are worth anything to anyone here? If they are worthless, I'll throw them on the scrap pile....but don't want do that otherwise. They don't look damaged and both seem to be fairly tight when I extend them but I'm sure that's not a good test? This isn't an advertisement but want to know if I should advertise them or not waste anyone's time...thanks.