The correct replacement slide-out motor you will need to use in place of a "523982" is the Replacement Gear Motor Assembly for Lippert Component Power Gear Slide Out part # LC67FR. The cost can then be found by clicking on the link and proceeding to the product page. view full answer...
Lippert Components Heavy-Duty Replacement Shock - Yellow # LC283280 are what you will need as replacement shocks. They are 8.625 inches completely compressed and 13.5 inches completely extended so under weight they likely will be right at your 11 inch measurement.
If you need replacement brackets, you can use the kit # LC281281. view full answer...