Dwayne 'The Rock' Johnson is a part of "Fast & Furious" franchise once again ... despite previously claiming he's permanently put the brakes on when it comes to Vin Diesel's flicks.
Spoiler alert, folks -- but according to TheWrap, Dwayne makes an appearance in a post-credit scene for the latest installment, "Fast X," which hits theaters next week. It's unclear exactly what goes down, or who he appears with, but it's safe to say good ol' Luke Hobbs isn't done drivin' fast cars.
It's a shocking cameo, though ... because as we reported, Dwanye wanted nothing to do with the franchise back in 2021 after Vin publicly begged him to come back to the 'Fast' family -- asking Dwayne to "not leave the franchise idle you have a very important role to play."
Dwayne called him out soon after, telling CNN the Instagram plea was just a bunch of "manipulation" -- adding he spoke to Vin privately about his decision and there was absolutely "no chance I would return."
Of course, there was some bad blood between the 2 over the years on set ... with Dwayne saying some of his male costars on those movies -- with all signs pointing to Vin -- didn't act like "true professionals."
Can you smell what the Rock is cookin'? Cuz it smells like some embarrassing backtracking.