The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Pulsing vibration at around 55-65 mph

Redline · 06-28-2013, 07:34 PM

Thank you for the chart I will start working down the list tomorrow morning. I have been messing with the truck a little today and did confirm if I am in 3 gear running around 45 I can not feel anything as soon as I get over 50 I do. As soon as I drop down in to 2 gear at 45 or and the RPM's are high the vibration is much much worse. Basically anytime the RPMs are over 2500 or I have the throttle wide open is when I feel the vibration.

Mike

06-28-2013, 07:34 PM	#82
Redline Registered User Join Date: Feb 2009 Location: Dallas Posts: 60	Re: Pulsing vibration at around 55-65 mph Thank you for the chart I will start working down the list tomorrow morning. I have been messing with the truck a little today and did confirm if I am in 3 gear running around 45 I can not feel anything as soon as I get over 50 I do. As soon as I drop down in to 2 gear at 45 or and the RPM's are high the vibration is much much worse. Basically anytime the RPMs are over 2500 or I have the throttle wide open is when I feel the vibration. Mike __________________ 1966 GMC V6 351, Plano, TX 1974 Chevy K20 350/350/205