More Jaguar IRS Problems/Fixes

This is the cause of the failure of the system - the culprit. The stock Jaguar Thrust Bushing on the bottom of the lower control arm has/had failed, and shifted sideways. This was caused by not only the angular forces on the bushing due to acceleration, but the twisting forces from the other end of the thrust arm that rotates on a different axis. BUT, the center of rotation for the thrust arm is necessary for the entire assembly to rotate as a unit and not bind. This is on the driver's side, looking toward the rear.
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All jacked up so to speak.....ready to take apart again...
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Ultimately, the aluminum hub assembly was distorted to the point that it BROKE, along with the lower bushing.
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Casting number of the aluminum hub.
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Figuring out how to solve the issue
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Trying to think this through to solve all problems at once.. three scenarios of how the geometry works.
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Sad. But Curt Hamilton of Van Nuys came to the rescue with a replacement hub. He also narrowed the lower control arms and axles back when I was building The Judge.
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Thrust arm with the same type rubber vulcanized bushing on both ends. This ultimately will never be a good design.
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At Curt Hamilton's suggestion, I looked these Heim joint bushing spacers that allow the Heim joint maximum angular movement without binding on the mounting bracket. but I elected to use the ones from Summit with a straight shoulder. I like Summit.
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Disassembled both side since I needed to modify both sides for a long term fix. This makes an old man sore.....
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New bushings from Rock Auto to mount on the hub end of the lower control arms end of the thrust arms.
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Summits Heim Joint spacers.
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At the top, the original Snow White rubber bushing joint which does not allow any twisting that was mounted on the fixed end of the thrust arm, and as the wheel/hub move up and down, it keeps the arm from twisting, causing undue stress on the bushing on the hub. Below is the 5/8" x 5/8" Heim Joint with shims and spacers to mount it in the place of the rubber bushing. The sleeves were trimmed down to 1.5" to fit the mounts, and 1/2"x 1-1/2" washers were used as additional spacers to snug up the assembly to the mounting.
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VIDEO ----- New bushing to mount in the lower control arm/hub assembly but with two washers to limit the sideways forces imposed by braking and acceleration.
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VIDEO --- Showing that there is no binding of the bushings with travel of the lower control arm. ok, so those welds look pretty shitty......
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VIDEO --- This shows that geometrically, this is the solution. I will be fabricating and installing about a 2" or 4" spacer above the bump stop to limit the travel of the control arms..
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VIDEO --- This is the passenger's side with all final assemblies installed and bolted up after confirming that with a "loose bolt test", there was no binding anywhere. . You can see how the Heim takes the rotation that the rubber bushings simply cannot perform.
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