Fred Gruin built this impressive lineup of Navajo Freight Lines trucks. On the left is an On-Trak International CO-4070B Transtar II day cab with Rail Power Products doubles trailers. Decals are from Ken Goudy and Microscale. Center is a Chuck's Casting Mack F-700 with an Athearn 40' trailer and Microscale decals. On the right is another On-Trak International 4070B sleeper cab with an Athearn 40' exterior post trailer and Ken Goudy decals.