I seem to recall using 16mm sockets, long (18"+) extensions with a universal joint, and liberal applications of 4 letter words.

I had the car on ramps, and used a jack with wood blocks from below.

But what a difference in the car afterwards! Consider changing your trans mount as well- they are very often separated and collapsed, and you can't tell unless you lift the transmission off the crossmember. Not expensive or difficult though, just usually filthy down there.
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Rob Bareiss, New London CT ::: 87 244DL- 249K, 88 245DL- 181K, 84 242DL, 89 244DL parts, SOLD: 86 244, 88 244GL, 87 244, 91 244, 82 245T, 88 744GLE, 86 244