Leisure Travel Vans SpaceMaker Parts SINGLE CYLINDER ROOM EXTENSION – 31.0" STROKE MECHANISM AP15466 AP15465 KIT (Part Page) CYLINDER ASSEMBLYITEM 1 – RAP10740 (31.0" STROKE) REPLACES AP10740 TUBE KITITEM 2 – RAP90029 – REPLACES AP2369 VERTICAL ARM ROOM EXTENSION – 30.0" STROKE (WITH SYNCHRONIZING CYLINDER) MECHANISM AP15475 AP15476 AP15469 KIT NO INFORMATION AVAILABLE