This is what you are looking for,

https://www.chevsofthe40s.com/detail/6387/Chevrolet_Shackles_Rear_12ton_34ton.html

Here is a list of front end parts,

https://www.chevsofthe40s.com/dept/Truck/cat/200T/Front_Suspension_Components_Shocks_King_Pins.html

Check with all the venders in the links above for price options.

The inner piece is threaded and should just unscrew out, either way. Top and bottom are both the same. The ends are held in the shackles by a taper, so a quick rap with a hammer breaks them loose. Be sure to support the truck by the frame rails and only high enough to rake the weight off the springs. Don't over tighten the center bolt, just go enough to seat the tapers and ever so slightly bow the shackle plate. The bushing it self is pressed into the spring and frame mount. In the tech section, I believe there is a tip for making a tool to remove and install them.

Last edited by Joe H; 05/11/2014 3:54 AM.
1937 Chevrolet Inline-powered Streetrod