Benton Harbor, Michigan | A GMC Transmode Motorhome Upfitter
>> 1975 Avion
As featured in the 2017 Winter Issue of GMC Vintage RVing magazine.
1975 Avion owned by original owners Tommy and Ann Walker, Uvalde, Texas. A big “thank you” to the Walkers who have furnished paperwork plus other items for the GMC Community to enjoy.
Downloadable pdfs shared by the Walkers:
Gallery of items shared by the Walkers:
>> Avion Literature
Avion 23′ Brochure (Source: Bill Bryant)
Avion 26′ Brochure (Source: Bill Bryant)
Avion Sunburst & Provincial Brochure (Source: Bill Bryant)
>> Please Help Us!
GMCMI along with GMC Motorhome Historian Bill Bryant are working on compiling additional information on the Transmodes. If you currently or previously owned a Transmode and have documentation and/or photos, we ask that you please do share them with the GMC Community. Please contact us at or 612-501-4600. Thank you.