My TT is about 4500 Lbs, 22' and tandem axle. When unhitched and without the stabilizer jacks down: how much weight is required behind the rear axle to lift the tounge? When I had a popup this was...
My trailer is tandem axle 19 long ready to camp weight is 3,500. Never even a sign of tipping back. In fact I have never heard of this happening. Tandem axle makes the difference. So in short NO WORRIES