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).
Table detailing the inclination of axle pivots for various car models.
| Identifier | ExFiles\Box 49\4\ Scan200 | |
| Date | 15th May 1924 | |
| +4263 15.5.24. INCLINATION OF AXLE PIVOTS. Car. | Lean of Pivots. | Length of pivot pin. | Lean of pivot pins. -- | -- | -- | -- Y3441 | | | 40/50 HP. | 1º on axle | 8.815 | .154 X4263 | | | Gos:ll. | 3½(2½º on springs. | 6.3 | .385 | (1º on axle | | +9430 | | | EAC.111. | 1º on axle | 7.025 | .245 " | 1º on springs. | | | ||