American RV, 13320 SW Pacific Hwy (old Hwy 99W), Tigard, OR 97223, (phone: 877-394-9635) recently installed Gas Spring Strut Roof Lift Assist Units - 30 lb & 40 lb on the rear & front exterior walls, respectively. My 2004 FWC Grandby only has empty kayak saddles attached to the FWC luggage rack...