Vibration between ~55-65mph - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Brad · 06-20-2009, 12:35 PM

I have a nasty seat-o-the pants vibration that I feel between about 55-65mph. I don't feel it before that and it diminishes after 65 although the vibration cycle increases with overall speed. The vibration is more of a shudder that happens about 1 every second at 55-60mph and then the rate increases the faster I go yet it feels smoother the faster I go.

I've had my wheels balanced several times at 2 different shops. Could it be my driveline? I've noticed it sticks out about 1-1/2" and most dl shops recommend 3/4"?

06-20-2009, 12:35 PM	#1
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,672	Vibration between ~55-65mph I have a nasty seat-o-the pants vibration that I feel between about 55-65mph. I don't feel it before that and it diminishes after 65 although the vibration cycle increases with overall speed. The vibration is more of a shudder that happens about 1 every second at 55-60mph and then the rate increases the faster I go yet it feels smoother the faster I go. I've had my wheels balanced several times at 2 different shops. Could it be my driveline? I've noticed it sticks out about 1-1/2" and most dl shops recommend 3/4"? __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...



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