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Whats the numbers you see, Like said, the bigger bars over 1" are the same for both sides. mike

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Agreed. If numbered, generally speaking, the odd numbered part goes on the driver's side of the car, the even numbered part goes on the right side of the car...

Front to rear doesn't matter either for T-bars, generally, as the twist direction will be the same.
However, it's preferable to have the part number on the end of the bar to the rear, so it can be looked at later while it's installed in the car. (In case you're an Alzheimer's goof, like me )