Front shock rubber upper mounts (Isolators)

[Gnx6]

About 15 years ago I put Bilstein shocks on my Buick but now the upper mount isolators (bushings) are all cracked an nasty. I would love to just put poly urethane bushings back in since they last a lot longer. Anyone know what sizes and or part numbers are needed? Thanks!

 

[1986 Buick GX1]

I believe they are the same as the swaybar end link bushings, but I don't have any off to measure.
I think the ones with the washers will work. Maybe this info from Energy suspensions will help.

You should be able to get them almost anywhere.

https://www.energysuspensionparts.com/universal-sway-bar-end-links.asp