Drove home and did a routine LOF , I only missed the mileage by 168 miles , pretty good .
Whilst I was underneath with a 9/16" wrench in my hand , I tugged on some random fasteners and discovered the tranny cross member to frame bolts were loose

boy howdy those things are close to the cab floor & hard to reach .
Tightened them up and noticed my forward cab mounts are shot , I think I'll try the urethane ones .
Then I decided to replace the leaky exhaust donut , I used a sintered steel one as the old fiber wrapped typ keeps leaking .
I had to loosen the whole exhaust to wiggle it forward about 1/8" before the head pipe entered the exhaust manifold's hole dead center ~ we'll see if that helped or it begins leaking again in two weeks .
Lotta hard works for an old man who's more beat up than the truck is =8-^ .