I have a 2005 GMC C8500 Electric Service Utility truck. Everything on the truck runs great! Has no problems at all. The boom runs and operates perfectly, and goes 70ft high. The truck has no leaks what so ever and has a 6speed Alison transmission. It has 128xxx miles. It has a really nice and powerful Caterpillar engine. It has a brand new set of tires as well! A/c and heat both work good as well! If there is any questions, feel free to contact me at 615-818-2328.