Wishbone parts

[JRHASZARD]

On the rear wishbone of my 39 pickup, there is a rubber encased shackle type bolt that fits into the rear axle housing by the brake backing plates. These are worn out. I am trying to reassemble the chassis and would like to replace them of course. Where can they be procured, and how are they installed? Thank you for any suggestions. I hope I have included enough information. Oh, the parts are all black.
Thanks, John

 

[JRHASZARD]

Should have said FRONT

 

[JSeery]

There are a number of past threads on different methods to remove and install the shackle bolts.

 

[JRHASZARD]

I feel like a wishbone after I reread that post. I'll check the past posts. Thank you.