thanks for the info!! will check my two spares to see if they are that identical tire or not, im sure they changed them year to year but size is the same!
i know my 75 has a firestone in it and im the second owner so i have to believe its the original one, the 78 wagon not too sure im like the 6th owner and the guy i bought it from was kinda a NUT!?!?! blew a tire in it and then removed all the a/c parts because the in his words "the freon leaks on the tire and blew it out"?
well take care and thanks again on the info