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 weights of various 1937 Buick parts across different series.
| Identifier | ExFiles\Box 101\3\ scan0054 | |
| Date | 24th March 1937 | |
| 500 C O P Y. 1937 BUICK WEIGHTS. March 24th, 1937. WEIGHT IN POUNDS. PART. Series Series Series Series "40" "60" "80" "90" Engine - (Less clutch and 705 836 836 836 oil, includes manifold.) Exhaust Manifold 17 1/2 18 1/2 18 1/2 18 1/2 Transmission Assembly 76 1/2 91 91 91 (Includes rear bearing retainer, universal joint, universal joint ball and retainer, and shift lever) Rear Springs (Less covers) - each 38 38 45 1/2 56 1/2 Rear Spring Rate (Test machine 128 128 128 135 145 lbs per inch deflection) Rear Axle Assembly (Less brake 220 226 1/2 240 274 1/2 drums, includes brakes) Where both systems use the same type of emergency brake hook-up, the hydraulic brake hook-up saves same weight over the mechanical brake hook-up. It saves considerable weight over the vacuum booster system. Clutch Wt. Olds. 16.00 lbs. | ||