listing to port

Hi

Well, I tried the trick of loosening the shackle bolts. They undid easily, first time this has ever happened with any bolts on this vehicle, but of course they are new. Rocked the vehicle about, left it overnight---but no joy. Just so I can check that the 2 new springs on the rear haven't been put on the wrong sides, does anyone know the correct part numbers (or where to find this info)? The driver's side spring has the number 517588, and the passenger's is 517589.

Thanks for any info

Dave