Spring part number 3722242

Are you sure that's the number? It doesn't show up on the list of A-body springs that I am looking at.

3722 243 is listed as 5 leaf, 1974 Duster, standard V8 (318 )
244 is 5 leaf 1974 hardtop (Dart/Valiant), standard V8
245 is 5 leaf 1974 Scamp and 4-door, standard V8