1993 Accord LX - Auto Transmission

At the peak of each gear, I get shaking. If you were to graph it out from left to right, the line would look much like a wave, but right near the crest of the wave, the line would jiggle. It doesn't shimmy the whole time, just near the "top" of each gear.

The front motor mount DEFINITELY needs to be replaced and I have one in the garage, waiting for the time to do it.

Also, when I got it lined up recently, the tech said the RF axle's boot was busted open. The axle def. needs replacement, as evidenced by knocking when making a sharp L turn.

Could the above 2 issues be contributing to my vibration issue?

I DID just do the timing belt recently and tried very hard to make sure all the sprockets were lined up appropriately (namely, the balance shafts)...I sure hope that's not it. :/

Anyone care to wager a guess?