I own a similar bearing press tool. The problem with the kit is it uses a 3/4 inch bolt which is only good for about 11 tons of force. I stripped three of these bolts changing two bearings before I upgraded to a 1" bolt (31T force).

The 3/4 rod would probably work for the rear bearing as it felt like overkill when I used the 1" upgrade on the rear bearing.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)