Noise and Vibration at 50-55MPH? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TwoFiftyShifter · 08-21-2009, 01:13 AM

I bought my '87 last week and have driven her about 50 miles or so, and the truck makes a lot of extra vibration and a little noise at exactly 50-55MPH, and at no other speed. You can hear it a little and feel it on the pedals and seat, not on the wheel. U-joints are good..... What can it be? Normal possibly?

Also, my seat is horrible..... middle and passenger are fine (bench seat) but the driver portion feels like I'm sitting on a lunch box. Should I just find some foam and stick it under the seat cover?

08-21-2009, 01:13 AM	#1
TwoFiftyShifter Registered User Join Date: Nov 2008 Location: Gwinnett GA Posts: 1,803	Noise and Vibration at 50-55MPH? I bought my '87 last week and have driven her about 50 miles or so, and the truck makes a lot of extra vibration and a little noise at exactly 50-55MPH, and at no other speed. You can hear it a little and feel it on the pedals and seat, not on the wheel. U-joints are good..... What can it be? Normal possibly? Also, my seat is horrible..... middle and passenger are fine (bench seat) but the driver portion feels like I'm sitting on a lunch box. Should I just find some foam and stick it under the seat cover? __________________ 1982 K10 SWB 1987 V20 - Sold - Doh!



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