Seuss versus Chuck Jones on the Endangered Sleigh

Chuck Jones told on a program years ago that Seuss was opposed to Max becoming so much comedy relief and dominating the cartoon, which astonished me, until the cartoon came out and it was an out-and-out success.

In listening to the cartoon, it becomes clear that virtually all the words are Suess's (sans Ravenscroft's song, I take it) and you can hear that there are no words for Max's face in the snow making St. Nick, the sleigh going over Max, Max sitting on the rear end of the sleigh, as well as various other moments with Max.

But Max is referred to in the narration.

What I did just now notice in watching it is that there is no mention of the sleigh hanging over the cliff.

The words go from the Grinch's realization that Christmas is more than materialism, then the next recital is that the Grinch's heart grew three times that day, and he had the strength of ten Grinches, plus two.

Now what this makes me wonder is if the endangered sleigh was in the book.

Truthfully, I have never read the book (or not seen it in decades. why when we have this cartoon?), so anyone with the publication, is the sleigh on a ledge as we get it in the cartoon?