So, just to follow up and admit my foolishness...
after 1500 km of driving with what proved to be just as bad a deathwobble as before I did the trunion bearing I had a close look at my wheels.
yup. no wheel weights left on left front. hmmph. 6.5 ounces later my wobble returned to respectable minimums. serves me right for not closely inspecting those wheels when problems manifested!
other things worth noting on my trip:
Just west of Jasper I lost high beams, so enjoyed the curves in the dark with one hand on the wheel wobbling like mad and the other holding the stalk of the lightswitch back to give me high beams. but no moose, or meese, materialized.
the engine ran like crap from Jasper to Edmonton to Calgary, and it wasn't until I got back into BC that it calmed down. symptoms were masses of whitish smoke at 1500-2900 RPM, surging, coughing, missing. changed fuel filters and a bunch of fuel lines to and from the IP and ran a bunch of lubricity / injector cleaner additive through. still scratching my head. runs fine back down here. kind of wonder if the IP isn't spot on, as Cam and I put it back on it's old marks when we had it off to replace some o-rings.
pulled over east of fernie and met a guy named Gord parting a 60, selling a 45 3b, another 45, a 40, and he had two 75 frames painted up and ready to rebuild. anyone looking for bits from those trucks, I have his coordinates.