So what's the trick to getting it out? Seats in the way?

I answered this on your other thread. It's the only way to do it unless you want to separate the deck from the hull.

So just remove the bottom part of the back of the back seat and just drill a hole?

Yeah if you use the correct size hole saw its pretty clean and you'll never see it. If you can get your new sender in without drilling the hole you could just bent the old one to get it out which would ruin it

As stated you can remove the old float style sender from the engine room but it destroys it ..... then go with the new style single tube and I think we got in from the engine room ......m

Mine has a screw in access hatch below the rest seat

Mine doesn't I don't think. I haven't removed my back seat yet.

Anyone have pictures of what they did??