A 2009 Ram 20 inch wheel will fit on a 2000 Ram 1500 4wd, but not on a 2wd.
yes they will
No, they are different body styles.
YES
The 2009 GMC Sierra-1500 has rear wheel drive.
The 2009 Chevrolet Silverado-1500 has rear wheel drive.
The 2009 Dodge Durango has rear wheel drive.
The 2009 Dodge Charger has rear wheel drive.
The 2009 Dodge Journey has front wheel drive.
The 2009 Dodge Avenger has front wheel drive.
The 2009 Dodge Challenger has rear wheel drive.
The 2009 Chevrolet Silverado-1500 has a 9 ft. 11 in. (119 in.) wheel base.
The 2009 GMC Sierra-1500 has a 9 ft. 11 in. (119 in.) wheel base.