Ours didn't have the ladder either. We winter camp so we need it. To get the "right" one we ordered "0420698 LADDER, REAR, TFM5610, 97-1/2 X 25 X 11-1/4”, 6-STEP, LEFT SIDE, BLACK" from Thor. 6-8 weeks for delivery, $300 freight to ship, couple hours to install (need schematics from Thor to insure it is installed correctly on the supports, not just into fiberglass). All up about$1,000, which is really expensive. But we go all year when it snows and NH has a law about cleaning off the roof before driving so it had to be done.......
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