HZ GTS Codes and Information
Late Production (From mid 78) 5L Engine, M21 gearbox, 3.36:1 axle
Deck lid also displayed the new GTS badge. Located above the lock in the centre of the deck lid.
Grille also displayed the badge. Located in the lower left section of the grille.
Deck lid displayed the RTS badge. Located on the lower left corner.
Deck lid displayed the engine designation. Located on the lower right corner.
For Quartz Halogen headlamps, Inner two where driving lights.
Instrument panel displayed the RTS badge. Located under the left side face level air outlet.
Instrument faces where all newly designed. Indicator marks where now displayed on the outside of the numerals. Indicator needles coloured yellow. Dash facia coloured black.
Front and rear windscreen reveal mouldings newly styled black and chrome finish.
Exhaust gas emission control was improved.
Engine coolant recovery system fitted to vehicles with factory air conditioning.
Radial Tuned Suspension. (RTS)
Four wheel power disc brakes.
Early production fitted with the 4.2 litre engine as standard equipment with the 5.0 litre as an option. From mid 1978 the 5.0 litre engine was standard and made the only engine avaiable. With the change the engine sizing badge on the deck lid was removed.
Steering wheel horn cap featured the new designed Holden lion emblem.
Front air dam and rear spoiler where standard. But could be deleted on order.
Rear tail light and turn signal assembly rims painted to body colour.
Sports Wheels (GTS rims) where standard. Where also colour coded to match body colour. With Wire wheels 14" x 6" 72 spoke and Polycast 14" x 7" rims available as options.
New unique colours available for the first time. Along with two tone combinations.
Optional two tone painted sports pinstripes. Originally available on factory delivered vehicles, later becoming dealer installed from early 1978.
Power steering standard with the introduction of the 5.0 litre as the standard engine.
Headlining material was made from a fine sandpaper texture material.
Optional cloth trim called "Tartan Plaid Cloth". Cloth trim interiors also featured a fold down centre armreast in the rear seat. A first for a Monaro/GTS.
Towards the end of the GTS production many items previously available as custom features on previous models where now included as standard equipment.
Aprox November 1978 the trim was changed over to the newer style Commodore style texture as the old stocks became deleted.
Trim colours where Black, Chamois, Buckskin and Tan. With the change to Commodore materials came the new colours Light Grey and Light Blue. Chamois and Tan where removed with the Commodore material introduction.
Late production 5.0 litre engines may have featured the revised prefix - ZT
The HZ GTS model discontinued before the end of the HZ production.
HZ GTS OPTIONS
RPO No. Description
AO1 Tinted Glass - All Windows (incl. AO2)
AO2 Tinted/Laminated Windshield
A22 Laminated Winshield
A31 Power Windows
A47 Rear Sear Lap and Shoulder Belts with Retractor
A8K Vinyl Roof Cover - Sierra
A9N Delete Air Dam and Rear Spoiler
B84 Exterior Ornamentation
CB1 Vinyl Roof Cover - Buckskin
CB3 Vinyl Roof Cover - Chamois
C27 Vinyl Roof Cover - Black
C60 Air Conditioning (incl. AO1, K96, UA1)
D85 Two Tone Paint Sports Striping
D99 Two Tone Paint
GU4 3.08:1 Rear Axle
GV4 3.36:1 Rear Axle
GV7 3.55:1 Rear Axle
G66 Superlift Shock Absorbers
G70 2.60:1 Rear Axle
G80 Limited Slip Differential
K96 55 Amp Alternator
L31 5.0 Litre Engine
M21 High Preformance 4 Speed Manual Gearbox
M40 Trimatic Gearbox
M41 Turbo-Trimatic Gearbox
M71 Wire Wheels
PE1 Polycast Wheels
UA1 Heavy Dusty Battery
UL5 Delete Radio
U57 Cassette Player
U75 Power Operated Rear Radio Aerial
U80 Rear Seat Speaker
VO1 Heavy dusty Radiator
V37 Chrome Bumpers
XS7 Anti-Theft Spring
XS9 Vinyl and Nylon Cloth Trim
XW3 Vinyl Roof Cover - Tan
XW5 Outback Equipment Package (incl. H/D Supsension)
XY9 Neutral Headlining - Chamois
Vinyl roof not available on early production vehicles (pre mid 78).
When introduced it was rependant on exterior colour and interior trim combonation.
Towards the end of the GTS production new vinyl roof colours where avaiable. They where Dark Carmine, Light Blue, Light Grey and Medium Green.
RPO XS9 on early vehicles featured Tartan plaid cloth trim with a central colour stripe reflecting the exterior colour of the vehicle. Later vehicles featured slightly different design Tartan Plaid Cloth with no central colour stripe.
RPO XW5 included RPO F72 which on its own was not available on the GTS.
Mid 1978 update featured the following RPO's as standard equipment AO1, A47, L31, M21 and N40.
| Paint Code | Colour | Comb. | Sugested Trim Colour |
| 30525 | Atlantis Blue Metallic | 1934/1448 | 11, 18, 23, 60, 63, 67 |
| 30851 | Aztec Silver Metallic | 1952 | 23 |
| 30517 | Flamenco Red | 1926/1441 | 11, 18, 60, 63, 67 |
| 30518 | Jasmin Yellow | 1927/1442 | 18, 60, 63, 67 |
| 30856 | Nocturnal Blue Metallic | 1957 | 11, 23, 63 |
| 30521 | Palais White | 1930 | 11, 18, 23, 60, 63, 67 |
| 30583 | Sandlewood Metallic | 1945/1482 | 63 |
| 30529 | Super Mint Metallic | 1938/1453 | 18, 60, 63, 67 |
| 30523 | Ultra Blue | 1932/1446 | 11, 18, 23, 60, 63, 67 |
| Sugested Trim Colours are recomended only. Other combo's where available. Early production vehicles where avaiable with two tone paint. Palais White was the upper body colour. The second colour combo number is for vehicles exercising the two tone paint option. Sprots "GTS" Wheels where finished in body colour and Charcoal. Polycast Wheels where Wheel Silver Metalic with a chrome centre cap. Wire Wheels had a chrome centre cap with black emblem. |
ADDITIONAL COLOURS:
| Paint Code | Colour | |
| 00990 | Grille - Low Gloss Black | |
| 04149 | Black | |
| 15991 | Blackouts - Tuxedo Black | |
| 17216 | GTS Wheels Silver Metallic | |
| 17473 | GTS Wheels Charcoal |
| 10890 | Engines - HK Rocket Red |
PIN STRIPE COLOURS:
| Paint Code | Colour |
| 00136 | RSL Light Blue |
| 11426 | Seamist Green |
| 12186 | Cameo Gold |
| 13935 | Kraft Blue |
| 15942 | Contessa Gold |
| 15944 | Deauville Blue |
| 15945 | Jade Green |
| 15947 | Satin Mist |
| 15953 | Mandarin Red |
| 17776 | Sierra Tan |
| 17777 | Papaya |
| 15942 | Contessa Gold |
| 30530 | Windsor Blue |
| 30525 | Atlantis Blue |
| R.M. Orange | |
| 17989 | G.S. Afflair |
| Acaco Red |
|
TRIM
|
Trim Comb 18, 60 and 23* (* up to 10/78)
| Shade No. | Narrow Stripe | Wide Stripe |
| 30517 - Flamenco Red | Papaya | Mandarin Red |
| 30518 - Jasmine Yellow | Papaya | Mandarin Red |
| 30521 - Palais White | Satin Mist | Deauville Blue |
| 30523 - Ultra Blue | RSL Light Blue | Kraft Blue |
| 30525 - Atlantis Blue | Satin Mist | Deauville Blue |
| 30529 - Super Mint | Seamist Green | Jade Green |
Trim Comb 63* and 67 (* up to 10/78)
| Shade No. | Narrow Stripe | Wide Stripe |
| 30517 - Flamenco Red | Papaya | Mandarin Red |
| 30518 - Jasmine Yellow | Contessa Gold | Sierra Tan |
| 30521 - Palais White | Contessa Gold | Sierra Tan |
| 30523 - Ultra Blue | RSL Light Blue | Kraft Blue |
| 30525 - Atlantis Blue | Satin Mist | Deauville Blue |
| 30529 - Super Mint | Seamist Green | Jade Green |
Trim Comb 11 & 23# (# from 10/78)
| Shade No. | Narrow Stripe | Wide Stripe |
| 30517 - Flamenco Red | Windsor Blue | Satin mist |
| 30521 - Palais White | Windsor Blue | Satin mist |
| 30525 - Atlantis Blue | Windsor Blue | Satin mist |
| 30851 - Aztec Silver | Windsor Blue | Atlantis blue |
| 30583 - Sandlewood | ||
| 30856 - Nocturn Blue | Atlantis blue | Satin mist |
Trim Comb 63# (# from 10/78)
| Shade No. | Narrow Stripe | Wide Stripe |
| 30517 - Flamenco Red | Papaya | G.S. Afflair |
| 30521 - Palais White | Papaya | G.S. Afflair |
| 30525 - Atlantis Blue | ||
| 30851 - Aztec Silver | Papaya | Mandarin Red |
| 30583 - Sandlewood | Sierra Tan | G.S. Afflair |
| 30856 - Nocturn Blue | R.M. Orange or Contessa Gold |
Acaco Red Cameo Gold |