Anyone know how to replace part 24147571213 (#14 in the diagram) on ZF 6HP26Z? Mine is leaking. TIS indicates special tools required for removing the seal and installing it but can't find them anywhere. I guess I could remove it with a pointy pick tool (risking scratching the shaft cylinder) and install it using the old seal, a washer and the nut to push it in (as demonstrated in the video)? Anyone knows of any tricks to improvise those tools?

https://www.youtube.com/watch?v=8dWcnSfZZBc&t=75s

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'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.