only drove two of the astros, the first had a cummins with a 10 speed. seemed i was lost in space felt like a lot more room than the 4070b international i was driving at the time. the second was a 8v71 with a 13 speed alot of fun but only bobtailed with it as the rears weren't right and the only way i could go was with them locked in drove it 40 miles home . it was a high milage truck. the wiring was jury rigged both doors had rusted along the bottom edges seems like the luggage dooors had issues with shutting properly. the ride was pretty stiff on springs airride might be better. the 73 astros were available with airconditioning and power steering and airride seat all pluses they also had a nice wrap around dash which as grigg pointed out started to get more complicated. i had intentions of getting it roadworthy but never had the time and had to get rid of it junkman cut the rears off instead of just starting it and driving it so had to find someone else to rescue the rest