It takes special tools. Performance Products rents a tool to press them in, which will be your next problem once you get them out.

The clicking noise in the rear is probably the CV joints. Look for a torn rubber boot on one of the four joints. There are many posts on axle repairs in the forum archives.

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1976 240D
1987 560SL
2007 E320 Bluetec
1998 C280 (now son’s car)
1982 240D Manual - Sold