There was someone that took the 904 low gear set and managed to make it fit the 727 with a lot of machining and splicing of 904/727 parts and welding.

But stock?

Nope

There are aftermarket low gear sets for the 727, but not cheap.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.