the way I found the easiest (mostly because my special case is a 722.4xx trans) was to cut the bushing and insert it fully on one edge then use a screw driver to work the entire bushing into the hole. Works like a charm and does not affect the working or load of the bushing.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)