Who is gonna be the first to tell me what the PN 3400081 leaf springs are for? Came out of a 72 Dart drag car. Are they SS or street? Can be used on both sides?

Thanks to anyone for the help!!!!!!!!!!!!!

 

Hey thanks MR340. Yep, maybe aftermarket #. A defunct leaf spring supplier listed it as a MOPAR number in its cross reference to their spring, but maybe that's why the're out of business. Maybe I'll run them and see the hook up numbers at 60 feet. Thanks for responding!!