1G AWD, 1G FWD and 2G AWD/FWD use 3 different install kits and 2 different styles of pumps. The difference between a Walbro 255 for a 1G AWD and a 2G AWD is that the inlet are rotated 180 degrees from each other. You could probably make it work.
Thanks Shane! I think I'll just keep looking for a stock 1G AWD pump then....if anyone has one laying around let me know. I know someone on this has to have one!