New step van “upfit” packages, customized for specific trades including hvac, are available. The specialized vans come in two models: a 9-ft, 3-in. loadspace on a 110-in. wheelbase and a 10-ft, 6-in.

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Later on, it became popular for conversion into food trucks, mobile workshops, and other applications. The Kurbmaster model was an aluminum-bodied van built on the Chevrolet Step-Van chassis.

The step van comes from the 1940s, and its RV conversion was done in the 1970s. It’s basically the equivalent of what it would be like to convert a Grumman LLV into a motorhome today.

Camper van conversion companies have also evolved and can now create more luxurious and more functional spaces to fit your lifestyle. One of them is California-based Big Bear Vans, an outfitter ...