Name of gasket to fix pre-front Cat Converter

[kturnerga]

Hi
I just got a 96 Ranger XLT 4.0L and it has an exhaust leak. The seal appears to be gone at the junction between the pipe coming off the Y and the front cat converter. What is the name and is it the donut or bolt-ear gasket?

Thanks
KT

 

[swshawaii]

http://www.rockauto.com/catalog/x,carcode,1138104,parttype,5836

 

[kturnerga]

So it would be: the Front and Rear Assembly outlet or Walker donut?
http://www.flickr.com/photos/74654914@N00/12146902506

The picture wouldn't transfer. So sorry