How in the world are you supposed to hook a wire to the back of the sending unit. There is no lug or spade or anything that I recognize. It is just like a brass post with a round cap?????
Rick

 

Im not familiar with Bullydog but how about a pic?

 

A normal crimp on spade connector will slide right over the end and will work just fine

 

TBI
I don't think so, I tried every size I had...a couple would fit but don't seem like they would stay. I know I am missing obvious, they couldn't have designed this thing to just have a spade loosely pushed onto it.
Rick

 

That IS weird - the Isspro version looks nothing like it. Maybe you are missing a piece?