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Shackle mounts
#1376314 Mon Sep 07 2020 10:39 PM
Joined: Mar 2012
Posts: 3
New Guy
I have a 1951 truck that I have stripped down to the frame. I have unbolted the cab mounts and have wondered if anybody has updated the rear cab shackle mounts for a more modern urethane mount from maybe an S10 or Ranger? Does anybody see an advantage to keeping the shackle mounts? I don’t think it would take much modification to change them out. Thanks for your ideas.

Re: Shackle mounts
FL_51Chevy #1376435 Wed Sep 09 2020 12:16 AM
Joined: Nov 2018
Posts: 100
Shop Shark
Most of the popular aftermarket suppliers offer a bed mount kit that includes all new bushings, rubber pads and hardware to rebuild your existing front and rear cab mounts, and is reasonably priced. Much easier than re-engineering mounts that have worked successfully for many, many years. Just a suggestion.


'51 3100 5-Window (Restomod in progress)
Re: Shackle mounts
FL_51Chevy #1376457 Wed Sep 09 2020 02:45 AM
Joined: Mar 2010
Posts: 9,443
Master Gabster
A 51 frame is designed to have a great deal of flex in it. That is why the cabs are mounted on shackles. It is what prevents cab sheet metal fatigue damage to the cab when going over rough terrain.
S10s and Rangers frames do not flex, therefor they do not require shackle mounts.

Re: Shackle mounts
FL_51Chevy #1376471 Wed Sep 09 2020 10:46 AM
Joined: Feb 2001
Posts: 6,845
Master Gabster
I ordered the bushing but my mechanic welded the shackles solid frown. ???????????

Ron, The Computer Greek
I love therefore I am.

1960 MGA Roadster Sold 7/18/2017
1954 3100 Chevy truck in the Gallery
2017 Buick Encore
Pix on Photobucket
Re: Shackle mounts
FL_51Chevy #1376487 Wed Sep 09 2020 01:56 PM
Joined: Mar 2008
Posts: 1,988
Shop Shark
I've thought about modifying the factory cab mounts on my 54. Th initial thought process was too use a biscuit style motor mount. The factory cab shackles actually do a pretty good job when it comes to absorbing shock and vibration. A better solution would be to modify the front cab mounts. The OE mount is basically justa chunk of rubber with a bolt through it. The trick is finding mount that is internally tied, so your cab stays on the frame when the rubber wears out.

1954 3600 Chevy Truck
"The Fake Truck"
In the Stovebolt Gallery
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