Vin Diesel Says Sayonara, 'Fast 8' ... Beef with Rock Rolls On

Vin Diesel got the hell out of Dodge ... minutes after wrapping his final scene in "Fast 8" ... and we've learned his feud with The Rock is NOT resolved.

Production sources tell TMZ ... Vin finished filming his scenes, with The Rock, no less, at 1 AM Wednesday and almost as soon as the director called cut Vin gathered everyone and said he was leaving. During his speech he said, "Daddy's gone" ... Vin thinks of himself as the father figure on set.

Our sources say earlier in the day, Vin confronted Rock over the disparaging comments he made about his male co-stars. Although Rock didn't name names, we know he was referring to Vin.

We're told Vin went to Rock's trailer and demanded to know why he was talking trash. The 2 spoke privately inside but we're told they did not squash their beef. One source intimately familiar with the actors tells us it's all about big egos.

As for Vin, he didn't leave anyone high and dry. We're told after shooting his last scene the studio cleared him to leave.

As for The Rock ... he shoots his last scene Thursday. The movie is a week away from being fully wrapped.