If you mean between the side of the bed (outside) and the jacks, I suppose that would be an option. I thought about getting it loaded perfectly and then painting a line on the ground to line up on (lined up with outer tire wall). I saw some problems with that so am looking other paths.
The dealership just said to watch over my left shoulder along B-post to back corner of bed. Watch the gap and make sure it's "right" as you back in. For them, it just has to be good enough to move from on lot to another (3 dealer locations). I don't think they worry about it much as long as it doesn't rub.
