Click on image for the lowdown. 
====
| | | Forums66 Topics128,078 Posts1,056,055 Members48,433 | | 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!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Oct 2010 Posts: 33 Geezer | | Geezer Joined: Oct 2010 Posts: 33 | Today when we pulled the cab off, we were thinking about eliminating the shackels & replacing them with later technology body bushings...
I would like to know if anyone has done this, if this is a good idea or if anyone sells a kit to do the cab to chassis in a better way than the original?????
I would appreciate all input & ideas..
Thanks,
tC
1966 C20 LWB, 327 4 Bbl., 4 Speed
| | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy Thirdcoast, please try to remember when you ask a question, to tell us the year and size of truck you're asking about. A little detective work tells me you have a 49 to 55 first series truck, is that correct? I have not seen a kit to change the cab mounting system, but someone else may have. | | | | | Joined: Oct 2010 Posts: 33 Geezer | | Geezer Joined: Oct 2010 Posts: 33 | So Solly,
1954 AD 3100
You have to remember that I am OLD & my memory fades after a day of ONE MORE HOTROD.. & beeeeerrrrrr....
thanks,
TC
1966 C20 LWB, 327 4 Bbl., 4 Speed
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | What needs to be "improved"? | | | | | Joined: Mar 2008 Posts: 3,750 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 3,750 | I've not heard of anyone changing out the rear shackle mounts,but I suppose you could replace the shackle bushes with urethane style ones.
But as Cletis mentions why 'improve' it,they've worked well for 60 odd years......
If you rebuilt what's there with new rubber bushes,they will probably last for another few decades.
The only other problem I could see would be increased noise transmission as the urethane is obviously much firmer than the original rubber.
Something I discovered when using urethane engine mounts.....
1950 Chevy Advance Design 3100 in ScotlandIn the Stovebolt GalleryMore pix on Flickr. I've definately got this truck thing in my blood ... my DNA sequence has torque settings"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.
| | | | | Joined: Oct 2010 Posts: 33 Geezer | | Geezer Joined: Oct 2010 Posts: 33 | Thanks, I will use the shackles...
TC
1966 C20 LWB, 327 4 Bbl., 4 Speed
| | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | I decided to replace the rubber in the shackles and found when removed they were in near perfect shape. Sixty years were good to them. If it feels better then replace the rubber or not...
~Jim
| | | | | Joined: Mar 2008 Posts: 3,750 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 3,750 | I decided to replace the rubber in the shackles and found when removed they were in near perfect shape. Mine were like Bakelite! 
1950 Chevy Advance Design 3100 in ScotlandIn the Stovebolt GalleryMore pix on Flickr. I've definately got this truck thing in my blood ... my DNA sequence has torque settings"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.
| | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | I decided to replace the rubber in the shackles and found when removed they were in near perfect shape. Mine were like Bakelite! Must be that Scottish climate. 
~Jim
| | | | | Joined: Mar 2008 Posts: 3,750 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 3,750 | They were probably frozen! 
1950 Chevy Advance Design 3100 in ScotlandIn the Stovebolt GalleryMore pix on Flickr. I've definately got this truck thing in my blood ... my DNA sequence has torque settings"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.
| | | | | Joined: Jul 2007 Posts: 23 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2007 Posts: 23 | Superior Glass Works -www.superiorglassworks.com - now makes a replacement rear shackle kit if your Bakelite bushings need replacement. | | |
|
|
