The Ford Barn

therupperts · 10-26-2017, 04:39 PM

1929 closed cab pickup: Anyone else experience a rear cab vibration on deceleration just behind driver and above the seat back? What did you do to remedy it? Roll of paper towels behind my neck is a little to obvious.
Thanks for any experienced solutions.

steve s · 10-26-2017, 04:56 PM

Some additional vibration during deceleration is common. It's hard to predict what part or parts of a vehicle will have the matching resonant frequency that will cause it to sing along. You can either tinker with the motor mounts to try to keep the vibration from being transmitted to the body, or tinker with the resonant object to either fasten it down better or otherwise change its natural frequency.

1955cj5 · 10-26-2017, 05:14 PM

Quote:

Originally Posted by therupperts

1929 closed cab pickup: Anyone else experience a rear cab vibration on deceleration just behind driver and above the seat back? What did you do to remedy it? Roll of paper towels behind my neck is a little to obvious.
Thanks for any experienced solutions.

I packed a strip of black foam rubber between the cab and the bed. You can't see it unless you look for it, and my truck is inside when not being driven, so moisture is not a problem.

That eliminated most of the rear cab resonance.

I also have FAM mounts front and rear, they may have helped reduce it too...

Randy

therupperts · 10-26-2017, 05:59 PM

Thanks for the idea!

BILL WILLIAMSON · 10-26-2017, 06:15 PM

You're BLESSED, if you only have ONE ( 1) vibration--LOL
Bill Huh

pooch · 10-27-2017, 12:08 AM

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Make sure the 2 extra drilled at factory bolts at back of cab to chassis are tight.

Ed Saniewski · 10-27-2017, 05:20 AM

I am not sure if this is what you are experiencing, here is a link about wood strips between the cab and the bed.

https://www.fordbarn.com/forum/showt...highlight=wood

Big hammer · 10-28-2017, 01:24 AM

I installed sound deadening in my Tudor it helped with noise. Behind your seat out of sight inside may reduce your noise.
Is this something new? Or are you just tired of it?
I'am thinking a U- joint maybe going out? Is the housing full of grease and or oil?

10-26-2017, 04:39 PM	#1
therupperts Member Join Date: May 2010 Location: Nokomis (south central Illinois) Posts: 66	29 closed cab - cab upper panel vibration 1929 closed cab pickup: Anyone else experience a rear cab vibration on deceleration just behind driver and above the seat back? What did you do to remedy it? Roll of paper towels behind my neck is a little to obvious. Thanks for any experienced solutions.

10-26-2017, 04:56 PM	#2
steve s Senior Member Join Date: May 2010 Location: Kalamazoo Posts: 1,656	Re: 29 closed cab - cab upper panel vibration Some additional vibration during deceleration is common. It's hard to predict what part or parts of a vehicle will have the matching resonant frequency that will cause it to sing along. You can either tinker with the motor mounts to try to keep the vibration from being transmitted to the body, or tinker with the resonant object to either fasten it down better or otherwise change its natural frequency.

10-26-2017, 05:59 PM	#4
therupperts Member Join Date: May 2010 Location: Nokomis (south central Illinois) Posts: 66	Re: 29 closed cab - cab upper panel vibration Thanks for the idea!

10-26-2017, 06:15 PM	#5
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: 29 closed cab - cab upper panel vibration You're BLESSED, if you only have ONE ( 1) vibration--LOL Bill Huh __________________ "THE ASSISTANT GURU OF STUFF"

10-27-2017, 12:08 AM	#6
pooch Senior Member Join Date: Sep 2010 Location: South Coast NSW Australia Posts: 2,596	Re: 29 closed cab - cab upper panel vibration Sponsored Links (Register now to hide all advertisements) Make sure the 2 extra drilled at factory bolts at back of cab to chassis are tight.

10-27-2017, 05:20 AM	#7
Ed Saniewski Senior Member Join Date: May 2010 Location: Denville NJ Posts: 964	Re: 29 closed cab - cab upper panel vibration I am not sure if this is what you are experiencing, here is a link about wood strips between the cab and the bed. https://www.fordbarn.com/forum/showt...highlight=wood __________________ Model A Ford Club of New Jersey http://www.mafcnj.org Model A Pick Up Owners and Enthusiasts https://www.fordbarn.com/forum/group.php?groupid=5

10-28-2017, 01:24 AM	#8
Big hammer Senior Member Join Date: Jun 2014 Location: Land of Lincoln Posts: 3,131	Re: 29 closed cab - cab upper panel vibration I installed sound deadening in my Tudor it helped with noise. Behind your seat out of sight inside may reduce your noise. Is this something new? Or are you just tired of it? I'am thinking a U- joint maybe going out? Is the housing full of grease and or oil? __________________ Don't force it with a little hammer tap, tap, tap get a bigger hammer tap done