Yes Bill, it is a pain, but you can do it. You just can't see it and feel it at the same time, adding fluid takes a long funnel and patience since you don't want to overfill.
If you have a STB, you may have to remove it first.
_________________________
03 GT, STB, GM HD sway bars, 35% tint, GE893(37watt)fogs, Flowtech Terminators, 180 T-stat, ZZP DP & PCM, Ceramic PLOG & Crossover, 18" glasspack, 2007 17" Mustang Bullits 235/55/17 Pirelli PZero Nero, 12" R1 D\S rotors, gutted air box, GTP radiator