MountaineerTom
LJ Enthusiast, Retired USAF Weapons Loader
Supporting Member
Ride of the Month Winner
For the plastic or poly or whatever they are, I would think the rubber isolator should go between them to keep from gouging up the spacer. The factory isolators are metal covered in rubber. The way I see it, they have stood the test of time on the jeep and proven themselves that they work where they are. I could be wrong though.