As long as the cartridge is not defective, and only the body seems to be a bit wider on one side than the other, it should not pose a problem.
Assuming that the sides are still parallel, you can use them for alignment, and assuming the front is straight, you can use that too.
The stylus tip has to sit on the dot, and the body must align with the lines. And it must be straight at both null-points.
I'd be a bit concerned about a defective cartridge, if this is a major amount off, because of the need to have the coils centered in the magnet fields. But if it is not defective in the motor part, the outer body is just providing an alignment guideline, and possibly a shield in some cases.
Assuming that the sides are still parallel, you can use them for alignment, and assuming the front is straight, you can use that too.
The stylus tip has to sit on the dot, and the body must align with the lines. And it must be straight at both null-points.
I'd be a bit concerned about a defective cartridge, if this is a major amount off, because of the need to have the coils centered in the magnet fields. But if it is not defective in the motor part, the outer body is just providing an alignment guideline, and possibly a shield in some cases.