![]() This would most likely be in factory #38 heat treat. I see bevel and straight gears shown hear. This multiple drilling machine photo has been shown in many Buick publications. A multiple drilling machine saved many hours of work.ĭifferential carrier machining. ![]() I believe this is the same operation shown farther below, only from a different perspective.ĭifferential carrier machining.This actually shows a large lathe table cutting a perfect mating surface for the transmission.ĭifferential carrier machining. One of many multiple drilling machines.ĭifferential carrier machining. “Sherman Minutia” Looking west in the factory #02 train shed.ĭifferential machining. These came from the same foundries near Chicago as the differential housing. Two on each side for the final Drive installation.ĭifferential carriers ready for machining. This appears to be where one of the two alignment pins will be installed. The armored cast differential housing being machined. The armored cast differential housing having the alignment pins installed. This would be the west side of factory #02 in the assembly area. A lot of automobiles were loaded onto boxcars from this area before World War II. Looking north in the east annex of factory #02. Mill work in the east annex of factory #02. Mill work being performed on the armored cast differential housing. There are many of these photos, so I will post a few.Ī large automated milling machine in the east annex of factory #02. Looks like all mill and drill work took place in the east annex of factory #02. You can look them up in the “Sherman Minutia” link. From the cast in markings these came from different foundry’s near Chicago. This still shot (from a Leonard Thygesen documentary film) shows the layout of factory #02, as described in the following photos taken during World War II at Buick.Ī diagram of the cast differential housing of the M-4 medium tank. Parts of some machines are already in place. These are the footings going in for machines in the east annex of factory #02. This shows the conversion from automobile shipping to tank drive assembly. I’m thinking this work was being done in another factory other than #02 at Buick, probably #31 or #66. ![]() I only have this one photo showing the manual transmission for the M-4. You can see many cases in the background. The synchcromesh transmission housing being machined. ![]()
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