I agree with the others on reusing the old crush sleeve.

For others beware of aftermarket crush sleeves. The pics are parts from my Chevy Astro Van.
Notice the difference as the formation of the used sleeve and the new sleeve. I installed the new one and tried to crush it and it did not want to crush and I got scared I was going to shear the end off of my pinion gear.

I reused the old sleeve.

From the pics I think it is clear which sleeve would be easier to crush.

An unrelated issue is if the pinion bearing is just worn or is it worn enough that it needs to be replaced? I think to decide that you would need to actually inspect the inside of the bearing race and the bearing rollers.

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84 300D, 82 Volvo 244Gl Diesel