The Stovebolt Site Forums The Shop Area Driveline Shackle mount threads

So I'm tearing down my chassis I noticed that some of the threads in the shackle/spring mounts that are attached to the chassis don't have threads I imagine that those threads are completely worn down, am I correct? If so how do you get those bushings out of the frame mount, looks like a major pita? I see those bushings are available.

There is a Tech Tip for a Do It Yourself method, in the Suspension Section. Look above on the Tool Bar for Tech Tips and follow the link to the suspension section. Then scroll down to Suspension Bushing Puller. That method works like it says. I know because I used it some years ago on my ‘46 back then. Good luck!

The part that is riveted to the frame is commonly called a spring hanger.
Inside the hanger is where part of the shackle (red arrows) is pressed in.
When you say the threads are missing, it is hard to understand which part you are talking about unless you provide a picture, which is always helpful.

Yes you nailed it. The spring hanger is what I was talking about and the red arrow boogers are what I need to replace. I'll be researching the tech tips. Thanks again

What year truck do you have? What part of the bushings do not have threads?

Paul's first posting says 1952 GMC.
Since the bushing is not threaded on the outside, I would think the threads he is talking about are on the inside.

Paul I forgot to mention. Don't hammer on those spring hangers, they can crack (cast iron).

Yes, 52 GMC.
After doing a pretty good cleaning and checking of the spring hanger bushings, I probably only need to replace 1 or 2. I do see that the mounts that have the nut and bolt only have the threads on one side as the bolt has a shoulder. I will need to replace all the spring bushings though.
One thing I really enjoy about rebuilding a vehicle type for the first time is learning how all this stuff comes apart and goes together, and how much has changed over the years, and on this vehicle everything is standard,,no metric!

While you're there, I'd replace all the shackle bushings. It isn't that hard and new bushings will help. I used a standard ball joint press to remove and install the bushings.