What is what kind of truck is ironhide?

Ironhide is a fictional character in the Transformers franchise. He is often depicted as a tough and dependable Autobot warrior who transforms into a heavily armored pickup truck. His alternate mode is typically described as a modified GMC TopKick C4500. Ironhide is known for his loyalty, bravery, and strong sense of justice, making him a valued member of the Autobots' team. He has appeared in various Transformers media, including movies, TV shows, and comics.