| fordmerc | -- 06-10-2013 @ 7:34 AM |
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Transmission is out! U joint seems "loose". Should I replace it or is there a lot of tolerance in the design ('39)? Thanks to kubes40 and TomO for encouragement in getting the trans out.
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| supereal | -- 06-10-2013 @ 9:56 AM |
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When you say "loose", where do you mean? Loose on the splines or the bearing cups". There is a special spacer washer under the bolt that holds the u-joint to the transmission output shaft that is sometimes omitted or replaced with an incorrect type. This will result in the u-joint being "loose" on the shaft.
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| TomO | -- 06-10-2013 @ 4:27 PM |
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There should be NO play within the U-Joint. All of the bearing cups should have 0 clearance. Tom
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| 40 Coupe | -- 06-11-2013 @ 4:04 AM |
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I agree with Tom. But with the U-Joint lubed properly the joint will move a lot! It will NOT have play in the bushings, so you will not be able to feel free play when you hold one end steady and try to rotate the other CW or CCW, also if you try to pull or compress the two ends there will be no movement. The steel bushings will move on and off (up or down) of the cross shaft with ease.
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| supereal | -- 06-11-2013 @ 5:33 AM |
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As with so many Ford parts, the u-joint is almost "bulletproof", if it is a genuine part. If not, finding worn and "loose" isn't uncommon. Just being able to resist the well known clutch shudder is a big job. They likely benefitted from the transmission oil that typically leaks around the output shaft, even when greasing was neglected or forgotten. The early Lincoln's used needle bearing joints for durability and were often used as replacements.
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