some parts are, your gonna have to do some research depending on what parts you want to interchange.
The dodge neon probably has some running gear parts that are interchangeable.
Most everything on the CJ Jeeps interchange including the Tub,Grill,seats and wind shield.
Dodge did not make a Cavalier.Dodge did not make a Cavalier.
Nearly all of the parts on a 2001 Dodge neon are interchangeable with the 2002 Dodge neon. The models are almost identical.
All body parts will, and most of the engine parts will too.
Not likely. The body changed in 2001.
Some parts, but not all.
Not as brand-name parts. However, some of the same independent parts suppliers that make Ford parts also make Dodge parts, to the extent that a few parts are nearly interchangeable between brands.
2013 models it would probably be the Buick Verano & Chevrolet Cruze. Of course the Chevy & GMC trucks have the most interchangeable parts of any 2 vehicles built today.
A 2004 did not have a Dana 80. That is an American Axle 11.5 inch. The parts are not interchangeable.
http://www.jcwhitney.com/ would be a good place to begin your search for truck replacement parts. They offer parts for Trucks, SUVs, RVs, Vans, Motorcycles, Jeeps, and ATVs.
the interchangeable parts where invented in 1798.