It wasn't the original fuel pump so I'm not sure which it is. But the gauge never went all the way to full, so I'm hoping it has the 19 gal sender in it. I'm going to fill it up this afternoon and take it for a long drive, so I'll know soon.
The reason I had to drop it to begin with was after I installed a 1" body lift I noticed the gas tank straps were both broken. The gas tank skid had a date of 2002 stamped in it, so someone had replaced the fuel pump and the skid, and was too lazy to replace the straps they broke taking it apart!