I apologize, I don't know how to do a build a how to thread, with pictures!
I just looked at your post, it seems to me it's a little easier on our 1st gens. For instance, there are just 3 screws, holding the fuel filler, that remains intact on the 1st gens.Well, I wrote a how-to for tilting the bed on my 1988 Mazda B2200 truck, but don't know
...how similar this is to a 1st Generation Frontier, as I haven't had the need to do this on my 1998 or 2004
...how long the photos will show up as they are hosted by the now universally-hated Photobucket.
B2200 Fuel Sender Replacement