You might also want to check the cv joints on the axles. Based on your description of the problem and a night’s sleep, I’d suspect them before trailing arm bushings. I think if the trailing arm bushings were bad enough to cause the issues you’re having they would be very noticeable in cornering and switching from accel to decel.

Also, it’s a bit of a project to do those bushings. Not terribly advanced, just a lot of road dirt, grunting and hard work with multiple jacks and very tight bolts. Sounds like a good idea to do that prybar check before just replacing them.

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'83 300D turbo diesel (334k daily commuter)
SOLD '80 240D 4 speed manual, #2 piston pitted from crushing a 10mm nut. Running it 'till it burns through.
'78 F-150 300cid 4spd od (with my great unkle's original sales receipt)
SOLD '66 Ford P-350 delivery truck (almost driveable)
'49 Dodge B1D (1 ton Pilothouse era truck) not running but all there, candidate for om617 and 4x4 conversion when money permits.