I was doing the rear brakes in my father's C230 and one of the dust seals is damaged. I ordered the seal kit and was wondering if there was a trick to get the seal on. I can get it over the piston easily, but getting it to sit down in the groove of the caliper is a different story. Do I need a special tool?

TIA,
Steve

__________________
1997 E320
1990 Nissan 300ZX Twin Turbo (Stage X+)