[chefdave]

If only toyota had fitted 15" rims we in europe would be spoilt by purposed designed rv tyres. LLR and high mileage tyres with low noise and good steering feed back. On roof a/c unit have removed mine handling improved on corners and cross winds but mpg stayed the same. Fitted smaller mirrors on an L bar and ditched door scaffolding for orginal mirrors. Freebeard aero expert who posted answers on my aero questions he suggested fitting a half round to camper body by cab doors. 4" guttering fits perfectly also fit this around all four sides on the front of cab overhang. thinking of doing same on rear body to smooth airflow into huge drag wake. This is similar to rear of many modern motorhomes made in europe. Hope some of this helps also google chef dave and look for my postings on mh aerodyamics.