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#1
03-02-17, 06:55
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The 40 to 46 pickups all used that setup. They also usually had a 4:11 gear ratio.
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2 
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#2
03-02-17, 08:59
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Alex, the spider and yokes failed , we fixed it twice , and tried to beef it up in the tube , but there is no room , if you want to step up one size in U joint.
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#3
04-02-17, 21:55
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I looked online and found that the u-joint "repair kits" offered by the Chevrolet parts vendors were said to fit '40 through '54 trucks with both 3 and 4-speed transmissions. Went to the shop today and pulled a u-joint assembly off a 1954 truck 3-speed, and also the front yoke from my busted original C8 4-speed transmission.
Sure enough, the u-joint from the '54 3-speed fit the C8 4-speed front yoke exactly. Both rear yokes are the same with 17 splines, but the front '54 3-speed yoke is smaller in diameter than the C8 4-speed one.. Alex, you are welcome to any of the parts in the photo, as I'll probably never need them... Thanks, David
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