Hey Dave, good question. *Usually* new coils come with a sleeve installed, but that's not always the rule. If you ordered a rebuild kit for the flippers, the kit will come with new sleeves.
Just in case you didn't know, replacing the flipper coils during a rebuild is not required unless there is something physically wrong with the old coil(s) such as swollen from mis-adjusted EOS switches etc. If the sleeves come out of your old coils without any trouble, I wouldn't worry about replacing them. Just keep the new coils in the coin box for when you do need them.
If you do have to replace the coils, make sure you install the wiring correctly! Keeping the wires on the same lugs as the olf coil isn't a sure fire guarantee it's correct, you have to make sure the direction of the diodes on the new coil match the old coil first and that the coil windings are attached to the same lugs as the old coil. (power and hold)
D
