Mystery vibration at 25 mph can't be diagnosed. It's not the front end!

Those idiots! Before washing grime away, I noticed that the engine mounts hadn't been touched. The drum brakes still pull to the right. They did the brakes months ago and I asked them to kindly fix what they missed and they didn't do it. WTF! What is wrong with people. Taking advantage of those people with disabilities is wrong. They made me look like a complete dumb ***. I'll never trust them again. I have found other specialist that will inspect things free of charge after I do what I can. I can't drop the trans, but I can inspect and tighten mounts. I just hope it doesn't come down to be the converter or harmonic balancer. That's expensive! Everything else is reasonably priced. UGH!
Well, You got out of there only out $100, these days that's nothing so don't let frustration get the better of You. The brake pull could be bad upper control arm bushings
besides the list of actual brake related causes, or even the rear axle shifting and steering the vehicle if it is not secured or has worn bushings etc. Don't get ahead of
Yourself and imagine the worst, correct what You find one item at a time, and move methodically to the next item. Once You've gotten obvious things like visibly loose
and worn out things tightened/replaced, go back to test drive diagnosis as stated to isolate where the issue lies.