1977 Chevy Van

[ClassicTVMan1981X]

I cannot find a specific forum covering the 1971-1995 G-Series full-size vans (or any van-related forum here); if there is a specific forum for this, please move this post there.

Anyway, my question: is it true that the 1977 Chevy Van got the changes for the 1978 models during the mid-year (after January 1977), such as the new front eggcrate-style grille used on the '77 C/K-series pickups? I know at the start of the year, it had the new tailgate and fender badges but still had the original '71-style front grille with the gold ochre bowtie inlay that was first used in '73.

~Ben