1970 GMC Trucks Steel Tilt Models Sales Brochure. GMC Steel Tilts fight driver fatigue with a full array of efficiency-boosting features. Tight quarters call for compact GMC Steel Tilts. Cross country or around the corner, GMC has the power to meet your hauling needs. Engine chart with Gasoline and Diesel options. The going's great on a reliable GMC chassis. Gasoline and Diesel specficiations at the back of the brochure. Condition: Rusty staples.  Obsolete sheet written in ink on back cover. Likely by dealer so they did not hand out after receiving newer brochures.