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).
Component modifications and their corresponding mileage intervals.
| Identifier | ExFiles\Box 97\5\ scan0167 | |
| Date | 24th October 1939 guessed | |
| G/DVW.2/38. P.2 Rear Axle - Contd. Miles. Outer Bearings. 7,258. Vent holes in axle tubes. 9,468. Oil catchers. 30,800. Brakes. Main components. 50,300. Front shoes and linings V.G.90 15,030. Rear Shoes and linings. V.G.90. 4,925. Modified rear Equaliser. 31,800. Step up on front Idler Lever. 31,800. Deletion of felts on rear inter.shaft. 31,800. Steering. Main components.(Improved geometry) 31,800. Near side cross steering tube. 24,494. Side Steering tube with Wraith type Joint. 9,468. Front Suspension. Zero castor yokes and all silentblocs. 50,302. Suspension levers and torque arms. 31,800. Spherical rubber bearings for torque arms. 50,302. Coil springs, packings and buffers. 50,302. Ex.32538 Rebound stops. 31,800. Main shock damper valves. 24,494. continued. | ||