East Coast Coach & RV SpaceMaker Parts DUAL CYLINDER ROOM EXTENSION – 24.0" STROKE (WITH SYNCHRONIZING CYLINDER) MECHANISM AP38009 AP38010 AP38753 KIT (Part Page) CYLINDER ASSEMBLY ITEM 1 – RAP15344 (24.5" STROKE) REPLACES AP15344 SYNCHRONIZING CYLINDER ITEM 3 – RAP39271 (9.685" STROKE) REPLACES AP13224 TUBE KIT ITEM 2 – RAP90480 – REPLACES AP13252
