Originally Posted by wmtire
Yes, your trailer will lean somewhat, when the slides are extended. You will read where a lot of people (moi included), counteract this by placing a small board or linx leveler blocks underneath the tires on the slide-out side when backing the trailer into the spot. I usually raise my slide-out slide a half-inch higher than the opposite side. Then when you extend the slides, it is usually level.
I'm sure each trailer is a little different, and depends on the weight of the slides, including how many there are. You may have to experiment a little to get yours figured out.
I have a Windjammer 3001W, two slides on the left/drivers side like yours. I make the slide side a little high when I set up so when the slides are deployed it pulls the TT back to level. Like wmtire said about 1/2" to 1".
Also I have noticed, if I put the stabilizer jacks down before I put the slides out, I have to readjust them after the slides come out. Again I think it is because so much weight is shifted to the left side.