Exhaust Drone Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Notes · 08-01-2020, 02:06 PM

72 C10. 350. New exhaust. Nice, straight exhaust pipes. Mufflers back as far as they can go. Tail pipes exit behind rear weels. Drone. Changed out mufflers to stock design. Much quieter, but at speeds above 60, it still drones. Question is - isn't a drone constant? This is now a rapid pulsation. It's almost worse than if it was constant. Thought it might be a wheel out of balance, but it goes away when I let it coast at speed. Any ideas?

08-01-2020, 02:06 PM	#1
Notes Registered User Join Date: Sep 2017 Location: Center Point, Iowa Posts: 82	Exhaust Drone Question 72 C10. 350. New exhaust. Nice, straight exhaust pipes. Mufflers back as far as they can go. Tail pipes exit behind rear weels. Drone. Changed out mufflers to stock design. Much quieter, but at speeds above 60, it still drones. Question is - isn't a drone constant? This is now a rapid pulsation. It's almost worse than if it was constant. Thought it might be a wheel out of balance, but it goes away when I let it coast at speed. Any ideas?



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