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 for the gearboxes of the first eight Spectre Chassis, listing various components and their part numbers.
| Identifier | ExFiles\Box 94\1\ scan0137 | |
| Date | 7th June 1935 | |
| To By.{R.W. Bailey - Chief Engineer} c. to Hdy.{William Hardy} c. to RHC.{R. H. Coverley - Production Engineer} x326 Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}11/KW.7.6.35. SpectreCodename for Phantom III Gearbox. Herewith specification of the gearboxes for the first eight SpectreCodename for Phantom III Chassis. Except for a few modifications these boxes will be like that in the 10,000 miles car. Front suspension, N.Sch.4020. Rear suspension, N.Sch.3829 and 4283. Engine coupling, N.Sch.4228. Gearbox castings, G.82703, G.82637, G.82745, G.82636. Oil Duct, N.Sch.4183. Locking Ball for 1st speed N.Sch.4224. 2nd speed actuating N.Sch.4207. Bolts in casing N.Sch.4233. Selector Housing, N.Sch.4234. Servo gears, N.Sch.4257, 4264. 1st speed increased leverage N.Sch.4275. Modified internal actuator to suit horizontal hand brake N.Sch.4468, 4498. Inspection covers N.Sch.4475. 2nd speed sliding piece N.Sch.4298. 3rd motion shaft N.Sch.4345. Ball races for 1st motion shaft only N.Sch.4405. | ||