It is unknown exactly when this overdub session
took place.
The record version of 'Swing Down Sweet Chariot'
was first released on the 2009 Sony compilation
box set I Believe - The Gospel Masters,
and again on Sony's 30 disc Complete Elvis Presley
Masters collection, where the liner notes incorrectly
indicated that it was first released on Elvis - A Legendary
Performer Volume 4. This version also contained
female backing vocals by The Blossoms and done
at the same overdub session as 'Clean Up Your
Own Back Yard'.
In March of 2007, Sony decided to go through all of Elvis' masters. They retransferred everything and remastered all tracks including repairing as many clicks, pops, bad edits and dropouts as they could. They have used these newly mastered recordings on their new releases since 2007 including budget soundtracks, Legacy releases, the 30 disc Complete Elvis Presley Masters collection and the Franklin Mint package.