I don’t understand that… Do you mean putting one above and one below the spring? How does that create spring tension? Or do you mean inbetween binding coils maybe lol idk. Jw how that’s supposed to work
Anyway I’d just use a flanged spring seat grommet. Pref hard rubber or urethane. order/trim it to fit and slice it to match the spring seat. I guess the spring could still spin and push it out like mike said unless your suspension is like mine and only droops like .5" Lol