Fuel tank sloshing Fuel gauge swings wildly

[miken]

1996 Yukon fuel gauge wild swings.
I have a new problem. The fuel gauge has started swing wildly when I brake or accelerate. Like the tank baffles broke.
Any ideas on where to look first?

Thanks
Mike

 

[ezdaar]

inside the tank.

 

[livingez_123]

I'm glad you said it first!

 

[ccapehartusarmyINF.(ret)]

thats something ive never heard of is the baffles breaking