Yeah to do it right you would really have to add supports inside the wall to hold the extra weight. Over time it will just tear up your wall.
I like the hitch mount tire carrier - but I have a bike rack on the back of mine half the time.
Others have rigged up a tire carrier under the rearend of the RV behind the bumper/hitch - simular to a pickup truck spare tire carrier.
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2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
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