Interior Trim Codes

The interior trim color code is a 3-digit number. Those not checked under Bucket are bench seat styling.
All U.S. plants except Baltimore and Fremont have a dash character after the 3-digit trim code number.
Fremont also adds a single letter after the 3-digit trim code to specify the interior paint color. See FREMONT at the bottom of this page for those letters.
For convertibles built at the Euclid plant destined for either Atlanta or Kansas City, and convertibles built at the Van Nuys plant the convertible top color immediately follows the TRIM code. See the paint code page for convertible top colors.
There may be additional interior codes for Oshawa-built Chevelles as I have no source to reference.

Code Color Bucket
707 Medium Saddle Starette Cloth, Imitation Leather  
709 Medium Saddle Imitation Leather  
710 Medium Saddle Imitation Leather X
714 Black Pattern Imitation Leather x
717 Light Fawn Imitation Leather X
722 Metallic Medium Aqua Imitation Leather X
724 Metallic Medium Turquoise Imitation Leather x
726 Medium Red Imitation Leather X
729 Ivory Imitation Leather x
738 Medium Blue Solaire Cloth, Medium Metallic Blue Imitation Leather  
739 Medium Blue Starette Cloth, Medium Metallic Blue Imitation Leather  
741 Medium Metallic Blue Imitation Leather x
742 Medium Metallic Blue Imitation Leather  
748 Medium Aqua Imitation Leather  
749 Medium Aqua Solaire Cloth, Medium Metallic Aqua Imitation Leather  
750 Medium Aqua Starette Cloth, Medium Metallic Aqua Imitation Leather  
753 Medium Metallic Aqua Pattern Imitation Leather  
759 Unknown - found on Van Nuys 5345 station wagon  
762 Medium Fawn Solaire Cloth, Light Fawn Imitation Leather  
763 Medium Fawn Starette Cloth, Light Fawn Imitation Leather  
766 Light Fawn Imitation Leather  
767 Light Fawn Pattern Imitation Leather  
770 Light Fawn Pattern Imitation Leather X
772 Medium Red Starette Cloth, Imitation Leather  
774 Medium Red Imitation Leather  
778 Medium Red Solaire Cloth, Medium Red Imitation Leather  
786 Medium Red Imitation Leather X
789 Medium Red Pattern Imitation Leather  
794 Medium Red Pattern Imitation Leather