according to this page, which includes a bunch of bands nobody has cared about it decades:

https://ultimateclassicrock.com/longest-lasting-rock-band-lineups/

I say 12 or 13 because Aerosmith is on there and they’ve had different touring lineups since their 1984 reunion, but those were for health reasons. I bet some of the other bands on there have done the same thing. If Metallica has then I don’t remember it.

Really, 3 changes as one position since their first album came out 31 years ago and no changes at the other three is an above average amount of stability.