Fred Gruin built this pair of Navajo tractor-trailer units using metal day cabs by Walker Model Service of the International CO-4070 and by Alloy Forms for the GMC Astro. Both are mounted on Wiking frames and have Athearn wheels, A-Line wind deflectors and mirrors, dual exhaust stacks from the parts box, and signs made from company literature. The International cab has windshield wipers and air horns from the parts box. The GMC cab has Athearn fuel tanks and Promotex air horns. They're both hooked to stock Athearn 40' Fruehauf exterior post trailers.

Posted October 9, 2016