As in 1937, all Oldsmobile trucks used a 230ci side valve engine (same as the passenger car line). A 4 speed transmission was used on all models except the smallest offering (the C-122) which was fitted with a 3 speed. The model line consisted of the C-122 (5,800 lb gross), C-133 (12,300 lb gross), C-157 (12,300 lb gross) and the F-155-H (17,000 lb gross). All models were Conventional steer except for the F-155-H being a Forward Control design.
1938 Model F-155-H Forward Control Truck
155½" wheel base, 17,000 lb gross weight
1938 Model F-155-H Forward Control Truck
155½" wheel base, 17,000 lb gross weight
1938 Model C-157 Truck chassis
157" wheel base, 12,300 lb gross weight
1938 Model C-131 Truck chassis
131½" wheel base, 12,300 lb gross weight