Noise/Rattle From Underneath - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jimjific · 08-13-2013, 12:13 PM

Hello All,

Just got my 69 swb step and it drives great. The only weird thing is I have a rattle sound that shows up around 32mph and goes away around 37 mph. I have tried to figure it out and can't seem to locate it. I thought exhaust first but there is nothing loose and I would think that would show up with RPM not mph. I've put the truck into neutral and the noise is still there so it isn't the motor.

I have a split shaft drive shaft, which seems weird for a short bed, could it be the bearing? I don't feel any vibration just an annoying noise. This would make some sense since it would be based on mph.

Thanks for any help,
Jim

08-13-2013, 12:13 PM	#1
Jimjific Registered User Join Date: Aug 2013 Location: Albany, NY Posts: 145	Noise/Rattle From Underneath Hello All, Just got my 69 swb step and it drives great. The only weird thing is I have a rattle sound that shows up around 32mph and goes away around 37 mph. I have tried to figure it out and can't seem to locate it. I thought exhaust first but there is nothing loose and I would think that would show up with RPM not mph. I've put the truck into neutral and the noise is still there so it isn't the motor. I have a split shaft drive shaft, which seems weird for a short bed, could it be the bearing? I don't feel any vibration just an annoying noise. This would make some sense since it would be based on mph. Thanks for any help, Jim __________________ Thanks, Jim - 69 Short Step CST 350 AC/PB/PS - 69 Short Step 307 Man Column/PS



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