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Mod | | | Forums66 Topics128,026 Posts1,055,407 Members48,422 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Nov 2009 Posts: 38 New Guy | | New Guy Joined: Nov 2009 Posts: 38 | I have a "54" 3100 pickup and when I look at it from the rear the cab is leaning to the left. When I look under the truck the shackle on the right side appears to be standing up better than the shackle on the left side I notice there are rubber bushings in these shackles could it be as simple as worn bushing when I measure it is a good 1/2" - 3/4" difference from the frame to the cab from one side to the other? Any sugestions, what else can I check?
Thanks
Mike | | | | | Joined: Sep 2008 Posts: 137 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2008 Posts: 137 | Sounds typical. These trucks (much like Jeeps) were generally driven by one person with no passengers. Over a long period of time the uneven wear becomes visible. | | | | | Joined: Nov 2009 Posts: 38 New Guy | | New Guy Joined: Nov 2009 Posts: 38 | I have found the part in question in the factory assembly manual it is called the "body mounting shackle" has anyone replaced the bushing in this part to level the cab I also see that there is a shim where the shackle attaches to the cab to hold a distance of .76 between the cab and the frame I do not have that gap so I guess I will check the shims and see what is there? | | | | | Joined: Feb 2006 Posts: 649 'Bolter | | 'Bolter Joined: Feb 2006 Posts: 649 | Now would be a good time to check all (4) cab mounts. If the front mounts are loose it will let the cab move, especially when you set the park brake. | | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 |
~Jim
| | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | I posted only one link, to American Classic Truck Parts, our sponsor here. However most vendors carry these parts.
~Jim
| | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | If the rear of your cab is in good shape, the angle is determined by what is happening at the front mounts. This is how the shackle system works. The shackles do not contribute to the cab sitting level and this allows the frame to move without twisting the cab. | | | | | Joined: Jan 2003 Posts: 68 New Guy | | New Guy Joined: Jan 2003 Posts: 68 | When I bought my 50 3600 I too noticed the cab had a slight "lean". Turns out the front cab mounts were rusted through and could no longer support the weight of the cab. The PO had jammed pieces of 2x6 lumber between the cab and frame to support it. I ended up pulling the cab off and welding in new mounts. Here's a pic: http://i671.photobucket.com/albums/...0%20Chevy%20Truck%20Project/Pict0525.jpg | | |
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