Kansas City, Missouri ~ Section 5 - 60 through 76

Box 60: SPEC. ORD.
Only one example of a Fathom Blue car requested with black stripes. Noted is the F&SO number and instructions in box 107 with a hand-written "28" in this box.

Box 61: BODY FRT. HARNESS
This box contains a 4-digit number.
9190 ~ found on one L78 sport coupe dated 10-29
9390 ~ No discernable pattern of electrical options except no convertibles
9462 ~ found on El Camino only
9529 ~ found only on convertibles (through at least 11-13) with and without power top.
9662 ~ found only on one LS6 El Camino dated 12-12

Box 62: BODY LAMP HARNESS
This box contains a 4-digit number; or 4 hyphens ( ---- ) on convertibles through at least 11-13
---- ~ found on convertibles through at least 11-13
8671 ~ All sport coupe
9872 ~ El Camino

Box 63: BODY POWER HARNESS
-- ~ all except noted in 9464
9464 ~ found on units with (1) power convertible top, (2) A31 POWER WINDOWS or AU3 ELECT DR LOCK

Box 64: (unlabeled)
Since the box is unlabeled, it's uncertain what these codes represent.
**** - unknown and only 14 are coded with four asterisks ( **** )
HOLE ~ UNKNOWN

Box 65: I.P. HARNESS
This box contains a 2-letter code. There seems to be no correlation between any typical combinations options that might cause different codes; e.g., bucket vs. bench seat, console or no console, manual or automatic, gauges or no gauges, A/C or no A/C; listed based on 133 sheets.
BG ~ without console, without A/C, without gauges
BJ ~ without console, with A/C, without gauges
BN ~ with console, with & without A/C, with gauges, with power convertible top
BN ~ without console, without A/C, with gauges *
BR ~ with console, with & without A/C, without gauges

Box 66: CONSOLE HARNESS
This box contains either a 4-letter code or 5 hyphens ( -- --- ) if no console ordered.
-- --- ~ no console
XSEA ~ automatic transmission
XTEB ~ manual transmission

Box 67: INST CLUSTER
This box contains a 2-letter code and is dependent on column shift vs. floor shift and with or without gauges. Oddly the redline of the tachometer isn't relevant,
GA ~ floor shift without gauges
GG ~ column shift without gauges
GK ~ floor shift with gauges
GR ~ column shift with gauges

Box 68: MSTR CYL
This box contains the 2-letter code CN.

Box 69: STRG WHL
BLACK ~ standard black SS steering wheel
AK ~ optional NK1 CUSTOM S/WHL after at least 01-30
KX ~ optional NK1 CUSTOM S/WHL through up to 12-18

Box 70: STRG COLUMN
This box contains a 2-letter code for the steering column.
CG ~ automatic transmission column shift
CH ~ automatic transmission floor shift
CI ~ automatic transmission column shift with tilt column
CJ ~ automatic transmission floor shift with tilt column
CX ~ manual transmission
CZ ~ manual transmission with tilt column

Box 71: STRG COL COLOR
BLACK ~ All

Box 72: TACH
If the Chevelle was ordered with RPO U14 Instrument Panel gauges, a 3-digit number will be coded for the redline of the tachometer. If RPO U14 was not ordered this box will have 3 hyphens ( --- ).
--- ~ gauges not ordered
938 ~ 5,000 redline typically used on the 307 and 350 engines was coded for the base 454/360hp instead of the 985 unit it was supposed to receive
985 ~ 5,500 redline used on base 396/350hp engine
983 ~ 6,500 redline used on optional 396/375hp (L78) and 454/450 (LS6) engines

Box 73: SPEEDO CABLE
This box contains a 2-letter code for the speedometer cable to be used.
CR ~ automatic transmission
CS ~ manual transmission

Box 74: (unlabeled)
This box contains 4-digit number. Its meaning is unknown and there is no discernable pattern.
6653 ~
8165 ~

Box 75: CTRL. ARMS FRT
This box contains 4 letter code
XU XF ~ used through at least 12-18 (note space)
XUXF ~ used from at least 12-19 (note space removed)

Box 76: CTRL. ARMS REAR
This box contains a 2-letter or 4-letter code.
HU ~ all through at least 12-15
HUEE ~ El Camino
HUHD ~ all from at least 12-16 through at least 04-09 except El Camino
PPHD ~ all from at least 04-14 except El Camino