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 listing the weights of various 1937 Buick components across different series.
| Identifier | ExFiles\Box 10\5\ 05-page053 | |
| Date | 24th March 1937 | |
| 658 COPY. 1937 BUICK WEIGHTS. March 24th, 1937. WEIGHT IN POUNDS. PART. Series "40" Series "60" Series "80" Series "90" Engine - (Less clutch and 763 836 836 836 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 54 1/2 Rear Spring Rate (test machine lbs 125 125 135 145 per inch deflection) Rear Axle Assembly (less brake 220 224 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 some weight over the mechanical brake hook-up. It saves considerable weight over the vacuum booster system. Clutch St.{Capt. P. R. Strong} Olds. 16.00 lbs. | ||