Archbishop Lefebvre was not a revolutionary.
I have read that he accepted the Mass of 1962 (at the time, who didn't?). I have read that in 1965, when there were some slight modifications made, he accepted them in filial obedience to the Holy See. He didn't yet see fully what was happening. But I have also read that he drew the line at the Novus Ordo that came out in 1970-71. It was then that he returned to the 1962 Mass.
I've also read at least two accounts (though I can no longer reference them) that he was considering moving the SSPX to the 1955 Missal at the encouragement of a number of SSPX priests shortly before his death but never made a final decision upon that matter.
It was the Novus Ordo that was revolutionary.