gp 7 gp 9 interchangeable shell question for the Bachmann

[ALCO0001]

To Bachmann,
I was wonder if you know of the new gp 7 and gp 9 shells are interchangeable from a gp 7 to a gp 9 with no modifications
Thank you for sharing your wisdom
in advance?
Chopper Jack

[jward]

I don't see why they wouldn't be. the chassis is the same.

[bapguy]

Yes they are interchangeable.  Joe