Lack of rear axle width is important on Transit and Sprinter if trying to build a wider motorhome. Most of these motorhomes are limited to around 90 inches although a few manufacturers have pushed Sprinters up to about 94~96 inches — which look goofy to me because body is much wider than rear wheels. It makes motorhome look top heavy.
Thor Class Cs on E-Series by comparison are mostly 99 inches wide. The one Thor exception I’m familiar with is the 19G Class C built on Single Rear Wheel E-350 which is listed at only 91 inches wide. The 19G is/was also lower overall and had smaller engine, so was significantly more fuel efficient. This smaller 19G is a more direct comparison with Transit and Sprinter motorhomes; although about 4 feet shorter in length.
It’s unfortunate Thor doesn’t build longer versions of the 19G on E-Series chassis.
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