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).
Comparison of axle ratio, springs, and shock absorbers for specific car models.
| Identifier | ExFiles\Box 80\2\ scan0241 | |
| Date | 9th October 1920 | |
| x2628b Extract from Hs{Lord Ernest Hives - Chair}1/LG9.10.20. X.3923. RE CAR 6.EX. X.4138. AXLE RATIO. 3.25 on both cars. X.2628b. X.3483. SPRINGS. Both cars are sprung with the same weight of springs We are using weaker springs on 6.EX Car than we used originally 6.EX Car has the old thin leaf type of springs - 1.EX the thick leaf type springs. Both sets of springs have the Ferodo interleaving. SHOCK ABSORBERS. Both cars are fitted with rear shock absorbers with only one stage. | ||