There are some Storage Threads that have good info/
"B" Leave suspension loaded as others have suggested.
In the PNW we use: Use Dri-Z-Air dehumidifier products to safely remove and absorb excess moisture and musty smells from the air.
Personally I use this YEAR round, it is Shocking the liquid that is reclaimed from the air. With Diligent monitoring and double spill protection Both my cars are Very well protected and absolutly No issues or moisture related maladies; Mold, Mildew, Smell, Insects, Rust, Funk etc. My garage is Heated, Insulated, Sheetrocked, Carpeted, and this product still this product pulls liquid AMAZING stuff.