FYI: The US patent for a quick-change gearbox for an engine lathe was awarded in 1906. That's 7 years before the first Chevrolet "1913 Series C Classic Six". Even Louis Chevrolet probably would have preferred a quick-change. grin

~ J Lucas
2006 GMC Envoy 4.2 I6
2023 Ram 2500/Cumins 6.7 I6
2010 Jeep Grand Cherokee (Wife’s)
2002 Silverado 2500 Gas 6.0
1941 Chevy 1/2-Ton
1942 Chevy 1.5-Ton SWB
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