From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specification sheet detailing various vehicle components, including the gearbox, axle, and drive shafts.
| Identifier | ExFiles\Box 119\4\ scan0224 | |
| Date | 14th July 1939 | |
| SPECIFICATION. Specification No. SD.80/5 Sheet No. 5. Issue No. V.2. Sec. No. | Title. | Description. | Design No. | Dtls. iss. LOP. No. | Remarks. --- | --- | --- | --- | --- | --- 6030 | Gearbox & Act. Gear. | Similar to B.V. except Gear Box Detail GB.5080. Clutch Case GB.4333DC. to suit C.I. Engine. Rear Engine Suspension. To | GCD.1417 | Issued by By/CRL.{C. R. Lisson}1/E.{Mr Elliott - Chief Engineer} 12.6.39. LOP.GB.4947 By/CRL{C. R. Lisson}2/E.14.7.39. | To L.O.P. except GB.5301/2 replace GB3315 D.C., GB.4351 DC, D.50575 and GB.4348/9. 6035 | Speedometer Drive. | Std. B.V. | | GB.4816. | 6040 | 1st. & 3rd. Motion Shaft. | Direct 4th. | | GB.4945. | No Anti Rattle Devices. 6045 | Servo Drive. | Std. B.V. | | G.B.4047. | 6050 | 2nd. Motion Shaft. | Std. Ratio with S/ZNC Clusters. | | GB.4946 | Crowded Rollers will be fitted by Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls} if required, but are not on L.O.P. 6070 | Reverse Gear. | Std. B.V. | | GB.4933 | 6080 | Change Gear Mechanism. | Std. B.V. | | GB.4164 | 6081 | Hand Brake Mechanism. | Bowden Operated Pawl - To - | GCD.1366. | GB.5185 | 6091 | Rear Brake Inter.Shaft. | As B.V. but Pull rod GB.4259 replaced by GW.1606 | | GB.4257 | 6110 | Propeller Shaft. | Hardy Spicer divided Prop.Shaft similar to B.V. except for length to suit S.F. Axle. Intermediate Centre Bearing - To - | GCD.1464. | GB.4453. | 6120 | Rear Axle. | 11/41 Ratio. Semi Floating. 45M/M Half shafts. Wide Spring Centres. 56" Springs. 'Perfect' Oil Seals. | | GW.2274 | Bevel and Pinion in S/ZNC. GB.4664/5 Wheel Studs will be required. | ||