Looks easy enough, thanks! Last time I had the mounts replaced there was actually fluid coming out of one of the old ones, so it wasn't a tough judgment call.
I'll start with the trans mount, I have a new one ready to go. I'd like to do the diff mounts if I can get my hand on the tool, too. There's no question they need to go, one of them is sort of half-collapsed.
aaa ... the tires are brand new, at least on the front. I suppose it could be the ball joints or lower control arm bushings, but all look pretty good. It's kind of reaching a point where I'm just replacing things at random and hoping the problem goes away. The tires did make a big difference cruising on the highway, but not completely.
And it could still be steering. And I'm not convinced the lug nuts didn't get damaged by the tire shop I used to go to.
So basically it just comes down to what order to start replacing things, and I'd like to rule out (or in) whatever I can before doing so. I'll pick up a 13mm bolt and hopefully I can rule out motor mounts.

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)