For your 2014 Thor Palazzo 33.3 motorhome's 60" blackout and charcoal screen shades, you will need replacement auto stops and a large spring designed for 1 1/4" inner diameter tubes. We recommend the Irvine Replacement Spring (Slow Rise Version) available for 60" shades, which matches your tube size and slow-rise shade mechanism. For the auto stops, use the Irvine Position Fixer Auto Stop (Slow Rise), ensuring the 1 1/4" sizing corresponds with your shade tubes. Measure your existing parts carefully to confirm compatibility before ordering. These parts can be found on ElkhartRVParts.com. If you need further assistance with sizing or ordering, our team is available to help you select the correct components to fully replace the internal shade parts, ensuring proper fit and smooth operation.