RV electric power, half not working

I finally got the power issue resolved. I started checking power at the outlets and found the one behind the coach in the slide out and the one in dining area only had 45 volts when touching the hot and neutral slots in the receptical. They had 110v when I would touch the ground wire on my meter to the ground slot I the receptacle. So now I new it was a white neutral wire problem. All connection in breaker box were good and tight. I started removing receptacles and checking their connections. I never removed an rv receptacle before, I can not express CHEAP enough. The wires go in or through the receptacle and they are pushed down into a metal slot that cuts through the wire insulation to make contacts. The receptacle with two sets of wires work ok. The one in the dining area had three wires. The outside wire was the power feeding the other two sets of wires and the neutral wire was out of the metal slot. Putting three wires into the slot opened the slot too wide so the outside wires could not make good contact. I removed the receptacle and used wire nuts to connect them together, BINGO, all plugs work. I just need to replace the receptacle now. I checked each receptacle in the rv one at a time and all the ones that were not working are powered from the bathroom gfci. The breaker for these is labeled "back". There is another breaker labeled "front" that powers all the receptacle in front of the rv. I have no problem with these but they are all labeled gfci protected and I can not locate another gfci. None of the front outlets are near water so am wondering if maybe they are not protected by a gfci but were labeled as such because they got a good deal by purchasing a bunch at a time. Maybe this post will help out someone else who has a similar problem. Thanks to all for your feedback.
Randy