Rolls-Royce Silver Shadow Chassis Info
The first letter of the chassis number denotes body styling; the second letter differentiates Rolls-Royce or Bentley, and the third whether the car is left or right hand drive and American model years. The 5 remaining digits represent the series number - for which more information is shown below.
Depending on year of manufacture and country the chassis number can be found on: 1) the engine bay bracket next to the right-hand side road spring pot; 2) the lower left-hand side windscreen; 3) the engine compartment bulkhead 4) either front door pillars.
Body Styling
S | Standard Saloon (Standard Sedan in the USA) |
C | Two-door saloon (Two-door Coupe in the USA) |
D | Convertible |
L | Long Wheelbase Saloon (LWB Formal Sedan in the USA) |
P | Phantom VI |
J | Camargue |
Make
R | Rolls-Royce |
B | Bentley |
Right / Left Hand Drive & US model years
H | Left Hand Drive (not North American cars 1972 on) |
X | Right Hand Drive |
A | North America 1972 model year |
B | North America 1973 model year |
C | North America 1974 model year |
D | North America 1975 model year |
E | North America 1976 model year |
F | North America 1977 model year |
G | North America 1978 model year |
K | North America 1979 model year |
L | North America 1980 model year |
In addition, a letter C is used as suffix letter after the car serial number to indicate that the vehicle has been produced to the 1980 Californian specification.
All coachbuilt cars were denoted by the prefix C up to car serial number CRX 6646. Convertible cars produced after CRX 6646 however, are denoted by the prefix D (e.g DRX), while 2-door saloons continue to be denoted by the prefix C.
Release Date | Modification Detail | introduced at Chassis: |
September 1965 | Harmonic damper to crossmember | 1060 |
5/8 inches diameter heating system | 1365 | |
Lighter brake pedal | 1467 | |
Steel accumulator casing | 1740 | |
August 1966 | Chilled Iron tappets | 2499 |
Stiffened tappet cover | 2639 | |
Starter disconnected from split parking | 2641 | |
88°C thermostat | 2832 | |
Drain hole In starter motor | 2951 | |
October 1967 | Saginaw steering pump all cars | 3000 |
Ankle freezer deleted from front passenger compartment | 3034 | |
Breather on gearbox actuator | 3253 | |
New boot lid seal | 3369 | |
Additional dram holes in body | 3508 | |
Fixed quarter light | 3552 | |
Reverse gear lock relay deleted | 3969 | |
April 1968 | Brake linkage pivot pins | 4084 |
Simpler sealing in rear rams | 4129 | |
Stiffened bell housing | 4316 | |
Thicker battery cable | 4386 | |
Revised handbrake | 4469 | |
All cars - GM 400 transmission | 4483 | |
No cars produced after 4874 until 5001 | 4874 | |
New alternator fan | 5192 | |
New locking strip, side steering levers | 5512 | |
No cars produced after 5603 until 6000 | 5603 | |
March 1968 | Viscous coupling on fan | 6300 |
New windscreen washer | 6300 | |
Higher steering ratio | 6429 | |
Hub yoke nut with higher tightening torque | 6545 | |
Inhibitor tablets in fuel tank | 6725 | |
Flat ledge rim road wheels | 6771 | |
All bodies to FSS spec. | 6792 | |
Bleed valve in ‘G’ valve | 6996 | |
August 1969 | Strengthened accumulator clamping ring | 7152 |
Longer bonnet locating dowels | 7209 | |
Split pin in steering box | 7318 | |
Swing needle carburetters | 7325 | |
Front height control deleted | 7404 | |
A.C.U. on all cars, C.A.V. alternator & Permanent magnet wiper motor | 7500 | |
Steel fan cowl | 7532 | |
Modified battery cover | 7600 | |
Stainless exhaust | 7620 | |
Strengthened handbrake caliper | 7650 | |
Tinterne petrol tanks | 7694 | |
15 lb sq/tn relief header tank | 7824 | |
Hot idle compensator | 7850 | |
Modified hazard warning swatch | 7904 | |
Rigid pump to accumulator pipes | 7917 | |
December 1969 | Modified indicator switch | 8000 |
Repositioned sill control rods | 8101 | |
Hardened seat in accumulator | 8200 | |
Smaller steering wheel | 8222 | |
Flexible hose with stainless cover | 8254 | |
Woodville diaphragm In accumulator | 8510 | |
Ankle freezer deleted, right-hand | 8532 | |
Asymmetric alternator fan | 8569 | |
Increased clearance seat to console | 8601 | |
6 3/4 litre engine | 8742 | |
No cars produced after 8861 until 9001 | 8861 | |
June 1970 | Additional radio suppression | 9001 |
Spigotted road heels | 9113 | |
Wick In battery box | 9131 | |
European suspension - all but USA | 9200 | |
Anti-roll bar on coachbuilt | 9240 | |
New brake calipers | 9380 | |
Increased height control sensitivity | 9393 | |
Whites speedometer drive | 9400 | |
New windscreen wiper box | 9577 | |
Steel distribution valve | 9584 | |
New front seat mechanism | 9630 | |
Centralised door locking | 9658 | |
New O-ring in brake pump | 9678 | |
All coachbuilt cars to Corniche specification | 9770 | |
Trico windscreen washer | 9898 | |
New camshaft | 9900 | |
Strengthened torque arm | 9912 | |
New petrol pipe clip | 9936 | |
January 1971 | Raw edge fan belts | 10000 |
Terylene fan belts | 10245 | |
Speed control optional | 10322 | |
Window in battery box | 10346 | |
Wash-wipe system | 10400 | |
Ventilated front wheel discs | 10500 | |
Improved VHF suppression | 10550 | |
Balanced rotor and vented distributor | 10600 | |
Triangle levers to clear exhaust | 10851 | |
June 1971 | Green brake fluid | 11130 |
Lighter brake pedal (USA & Canada) | 11155 | |
Modified distributor | 11173 | |
1.2:1 fan (Improved hoses) | 11200 | |
Long stroke dampers | 11466 | |
17 5:1 steering ratio | 11501 | |
Mk V speedometer head | 11600 | |
Aluminium door lock roller | 11690 | |
Ashtray in top roll | 11792 | |
Larger tappets housing brake pump | 11800 | |
1971 package deal & New switchbox casing | 11882 | |
Press-In wheel studs | 11900 | |
Modified height control valve | 11970 | |
November 1971 | Improved rear seat | 12000 |
Dagenite white top battery (except USA) | 12380 | |
Kangol seat belts (USA only) | 12428 | |
New door striker plate | 12481 | |
Rigid pipes 0.375 in. O.D pump to accumulator | 12490 | |
Tudor windscreen washer bottle | 12566 | |
New piston ring material | 12657 | |
New windscreen wiper and panel switch | 12720 | |
Rofan alternator belt | 12728 | |
Corniche compliant front suspension | 12734 | |
Improved controls labelling | 12760 | |
Nylon ball in accumulator deleted | 12800 | |
Modified expansion tank | 12858 | |
Simplified radio mounting | 12888 | |
February 1972 | Rofan fan belts | 13000 |
New distributor advance for full emission control engines | 13051 | |
Phillips double cone speaker | 13178 | |
Spherical faced cam follower | 13326 | |
Compliant front suspension (all cars) | 13485 | |
1972 electrical package deal | 13754 | |
Lighter brake pedal (Comiche) | 13861 | |
Weakener cut-off switch in choke hsg. | 13880 | |
New rear calipers (export Corniche) | 13922 | |
September 1972 | Stale air outlet | 14087 |
Improved speed control connection | 14122 | |
Silastic seal on valve collets | 14198 | |
New heater tap hoses | 14472 | |
Smaller air silencer | 14543 | |
Introduction of Camargue | 14674 | |
Steering column heat shield | 14746 | |
Metric calipers M170 pads (coachbuilt) | 14889 | |
1973 Detox regulations | 14954 | |
Modified hydraulic fluid reservoir | 14980 | |
February 1973 | Larger brake ‘On’ stop (American saloon) | 15059 |
Actuator vent into heater duct | 15302 | |
Improved door hanging (Corniche) | 15487 | |
1/4 in. UNF accelerator pedal clamping bolt | 15630 | |
Castrol RR363 hydraulic fluid | 15638 | |
Vented front discs M170 pads (LWB) | 15815 | |
Lighter brake pedal | 15854 | |
H/Lamp wash/wipe (Swedish cars) | 15855 | |
Increased silent padding (Saloon OTA) | 15890 | |
15” timing marks | 15941 | |
All vented front brake discs M170 pads | 15950 | |
June 1973 | Headrest fitting in seat back (approx. Std.) | 16000 |
Foot operated parking brake LH | 16079 | |
90:1 sensitivity HC system | 16130 | |
1973 package steering column | 16174 | |
1973 package deal | 16214 | |
Alloy spring pot cover | 16452 | |
Improved speedometer cable (saloon) | 16458 | |
Blue spot tape player | 16503 | |
Polyester woodwork - Corniche | 16576 | |
Improved speedometer cable (coach-built) | 16576 | |
Strengthened torque arm bkt (approx.) | 16600 | |
Deeper fan spigot (LWB) | 16657 | |
Compliant side steering lever (saloon) | 16666 | |
Improved front engine cover (LWB) | 16672 | |
Plastic bulls-eye (LWB) | 16685 | |
Hydraulic anti-surge baffle | 16699 | |
Elimination of overload on fuse 5 & Vinyl top dressing (LWB) | 16877 | |
FD crossmember with through bolts (LWB) | 16928 | |
October 1973 | Oil hangup mod (convertible) | 17056 |
Carpets with Velcro except LW8 | 17072 | |
Compliant side steering lever (Corniche) | 17100 | |
Oil hang-up mod (Corniche saloon) | 17270 | |
New fuel pipe run | 17381 | |
Additional dashboard drain | 17408 | |
Deletion of throttle stop (Corniche) | 17509 | |
1974 Detox regs. (Corniche) | 17515 | |
Mirror, s/control, tape, h/rest (standard) | 17518 | |
Deletion of key warning buzzer (OTA Corniche) | 17567 | |
Deletion of throttle step (standard) | 17571 | |
New Bosch radio | 17619 | |
1974 Detox regs. (Saloon) | 17629 | |
Deletion of key warning buzzer (OTA saloon) | 17672 | |
Oil hang-up mod (standard) | 17768 | |
Deletion of charging plug | 17885 | |
Deletion of two level lighting (Corniche) | 17919 | |
Deeper fan spigot (Corniche) | 17990 | |
February 1974 | Deeper fan spigot (standard) | 18171 |
Improved front engine cover (coachbuilt) | 18227 | |
Improved front engine cover (SWB) | 18254 | |
1974 package phase 1 - wide track (saloon) | 18269 | |
Plastic bulls-eyes (saloon) | 18270 | |
Sundym standard (saloon. except UK, Germany & Australia) | 18340 | |
Improved carburetter T piece (SWB) | 18436 | |
Elimination of overload on fuse 5 (SWB) | 18525 | |
Vinyl top dressing (4 door saloon) | 18552 | |
FD crossmember with through bolts | 18627 | |
Radiator shell mounting bolts USA (SWB) | 18670 | |
Improved brake disc crimping (standard) | 18836 | |
KPH speedo’s Australia (SWB) | 18865 | |
Improved brake disc crimping (convertible) | 18878 | |
Improved brake disc crimping (Corniche saloon) | 18935 | |
June 1974 | Improved mascot (LWB) | 19037 |
Improved brake disc crimping (LWB) | 19063 | |
KPH speedo’s Australta (LWB) | 19076 | |
Repositioned G valve screw (LWB) | 19121 | |
Repositioned G valve screw (SWB) | 19201 | |
Repositioned G valve screw (coachbuilt) | 19232 | |
KPH speedo’s Australia (coachbuilt) | 19289 | |
Preservative coated brake discs (LWB) | 19378 | |
Preservative coated brake discs (coachbuilt) | 19419 | |
Softer engine mountings (LWB) | 19443 | |
Australian type top roll to all SWB | 19498 | |
Softer seat for starter interlock (LWB) | 19535 | |
Improved mascot location & Long wheelbase non division HR70HR15 | 19577 | |
Australian top roll to all LWB | 19605 | |
Preservative coated brake discs (SWB) | 19615 | |
Long wheelbase division HR7OHR15 | 19640 | |
Device to prevent premature illumination of brake fluid warning light (LWB) | 19668 | |
New hoses (brake) | 19700 | |
Pioneer QP444 tape player (coachbuilt) | 19731 | |
Pioneer QP444 tape player (LWB) | 19754 | |
New switch diaphragm | 19800 | |
Softer seat for starter interlock (SWB) | 19893 | |
November 1974 | Shorter wheel studs (LWB) | 20012 |
Rocker type companion switch | 20019 | |
Pioneer QP444 tape player (SWB) | 20058 | |
Shorter wheel studs (coachbuilt) | 20120 | |
Centre exit manifold/catalyst (coachbuilt) | 20171 | |
Shorter wheel studs (SWB) | 20181 | |
Improved CDL | 20200 | |
Device to prevent premature illumination of brake fluid warning (SWB) | 20201 | |
Modded thermostat coil assv (coachbuilt) | 20345 | |
Modded thermostat coil assy (LWB) | 20579 | |
Centre exit manifold/catalyst (LWB) | 20628 | |
Modded thermostat assy (SWB) | 20665 | |
Seat belt warning (USA coachbuilt) | 20712 | |
Centre exit manifold/catalyst (SWB) | 20755 | |
1975 specification (Japan) | 20797 | |
February 1975 | Halogen bulbs - all LH cars except Sweden & USA | 21104 |
Seat belt warning (USA SWB) | 21177 | |
Modded throttle levers (coachbuilt) | 21324 | |
Modded throttle levers (LWB) | 21366 | |
Modded throttle levers (SWB) | 21441 | |
Corniche cars (USA) - with automatic air conditioning unit, new facia/instrument board and fuel vapour emission control | 21729 | |
Prestone UT184 anti-freeze (OTA LWB) | 21933 | |
Corniche cars (OTA) - with automatic air conditioning unit, new facia/instrument board and Opus ignition with new plugs | 21998 | |
June 1975 | (LWB) deletion of master cylinder/rear fog lamps, High pressure accumulator switch, High pressure fuel pump-flow & Check valve fuel vapour control (USA) | 22073 |
Prestone anti-freeze UT184 (OTA SWB) | 22088 | |
(SWB) Opus ignition new plugs (OTA), Rear fog lamps (all cars) high pressure accumulator switch/deletion of master cylinder, High pressure pump and fuel flow check valve & fuel emission vapour control (USA cars only) | 22118 | |
Smaller capacity accumulator sphere (SWB) | 22415 | |
1976 USA SWB specification | 22490 | |
1976 USA LWB specification. smaller capacity accumulator sphere (LWB USA - Japan - Australia) | 22503 | |
Vacuum advance distributor | 22572 | |
Corniche coupe DRH UK specification. With automatic air conditioning unit anti new facia/instrument board | 22583 | |
Smaller capacity accumulator sphere (Camargue) | 22587 | |
Vacuum advance distributor (SWB USA - Japan - Australia) | 22600 | |
Corniche saloon CRH UK specification. With automatic air conditioning unit and new fact/instrument board | 22648 | |
Opus ignition & New plugs (OTA LWB) | 22673 | |
Low fluid washer bottle and improved pump (Corniche) | 22847 | |
Low fluid washer bottle and improved pump (SWB) | 22939 | |
November 1975 | Steering pump pulley interference fit on shaft | 23024 |
Low fluid washer bottle and washer pump (LWB) | 23040 | |
1976 USA specification (Corniche) vacuum advance distributor for USA, Australia and Japan, High pressure accumulator switch | 23059 | |
Stiffened ‘A’ post on Camargue to use Corniche cubby box light switch and door stop | 23332 | |
Improved kickdown switch (LWB) | 23527 | |
Improved kickdown switch (coachbuilt) | 23603 | |
improved kickdown switch (SWB) | 23644 | |
February 1976 | Improved expansion valve for automatic ACU | 24129 |
Grooveless front main bearing shells | 24331 | |
(Japanese coachbuilt) Additional temperature sensing switch and electric cooling fan. Catalytic exhaust and warning buzzer. Exhaust fire shield | 24431 | |
(Japanese SWB) Additional temperature sensing switch and electric cooling fan. Catalytic exhaust and warning buzzer. Exhaust fire shield | 24482 | |
Combined front lamp with flasher lens (Italian Corniche) | 24500 | |
Engine mounted speed control bellows (all cars) | 24811 | |
1974 package phase 1-wide track (Corniche) | 18563 |
June 1976 | Date of manufacture plate fitted to dash (Japanese coachbuilt) | 25188 |
Improved quarter electric window lift (Corniche convertible) | 25556 | |
1976 regulations specification changes (SWB, USA and Canada) | 25565 | |
1976 regulations specification changes (LWB, USA and Canada) | 25596 | |
Drivers mirror to EEC regulations (Camargue to EEC countries. except UK) | 25618 | |
1976 regulations specification changes (SWB, all countries other than USA and Canada) | 25625 | |
1976 regulations specification changes (LWB, all countries other than USA and Canada) | 25741 | |
1976 regulations specification changes (Corniche convertible to all countries) | 25958 | |
Last of the Shadow I series motor cars. No cars produced after 26708 until 30001 | 26708 |