The ones they gave me had the steel sleeve. I cut the sleeve off but after that compression was taken off the rubber it was too difficult to get in the shackle. I shaved the bushing down until I could press it in the shaft, and it did not move after installed. Put it all back together and I'm good to go.

I also ordered a NOS shackle off eBay, so when that comes I'll just install that to be sure the bushing will work properly. At least now I won't be riding my CB750 in the snow like I did today, so it'll get me by for a couple days 'till the new shackle comes.