The only way you'll lose the lift pucks is if you lose the springs first. The spacers sit on top of the spring, so there's no preload on the spring, and slide over the bumpstop. So, there's really nowhere for the puck to go.
Polyurethane won't break down over time like rubber will. It's resistant to dry-rot, chemicals, and other factors that cause rubber to fail. The puck sits in place under constant pressure and will likely be as good as new if you ever remove it down the road.
I've seen some of Rough Country's 3/4" spacers get destroyed from wheeling 40"s, but never any Daystar products.
04 TJ Willys Edition 41MB-04TJ ...SOLD
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