1969 GMC Astro 95. GMC adds Cummins diesels to its line to shake up your idea of how much power one company can offer Published April 2, 2024 at 1820 × 1536 in GMC ← Previous Next → 1969 GMC Astro 95. GMC adds Cummins diesels to its line to shake up your idea of how much power one company can offer Source: www.flickr.com / Alden Jewell