Subframe bushings.....removal ?'s

[Shawn_of_the_Dead]

Alright, so yesterday I removed and stripped everything from my extra subframe. When I removed the bushings they came out (unwillingly) with a metal sleeve around each of them. It is like a cup that sat in the subframe and held the bushing. I will post pics when my roommate sends them to me.

My question is this: Was I supposed to remove the rubber bushing AND the metal sleeve that holds it, or just burn out the rubber and leave the metal sleeve? I will be ordering the SPL alum. soon so thought I should double check first. Don't wanna find out later I fooked it all up.