I would like to make an exterior mount to haul my 18 gallon, four wheel holding tank, any ideas that have worked or failed. Thanks. I have a 2005 3023.
on the road, I have seen it under a TM like the spare tire. Not sure about the size or how it was mounted??
Some models of 10-12 gallon blue boys will fit on some of the spare tire racks, depending on a ton of factors. Others have made modifications to the spare rack or added a second rack -- you can search here for more information on that.
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2009.5 2720SL
2006 Toyota Sienna
2018 Audi Q7