[ImperialCrown]

Bearings usually growl. Tires can shake and shimmy that changes with speed.
Are tire pressures OK? Any scalloping or 'bumps' felt in the tire carcass. Try a rotate to see if it changes the sensation? Is there another vehicle with the same size wheels that you could swap over for a road test?
Is this felt more in the floor, seat or steering wheel? Can you look down and watch you knee shake while driving?
U-joints can get worse under load and the shudder can feel like it's coming from everywhere. They spin ~4 times faster the than tires.
Chock the wheels, pull the driveshaft and articulate the front and rear joints up/down and left/right to feel for any binding in the needle bearings.
Finding the cause will be a process of elimination.

 

[BlackSheep01]

Yay .... I don't have jackstands or ramps to lift this puppy on. Fortunately the owner already has a set of better tires on identical rims, and wants to swap them over.
There's not a 'growling' type of sound.
FWIW on personal experience I had a 1986 pickup front driver wheel bearing nearly fail -- the only clue was an excessive amount of what I thought to be brake dust.
Yep, this truck's a project.

 

[bguy]

I put new(er) tires on my RAV4 and no longer think it has 2 bad wheelbrarings.

On another point, could the frame be bent or "sprung" from the collision?

Finally check all the hangers and mounts designed to isolate vibration.

 

[BlackSheep01]

We've had 3 different pros ok the frame as not sprung or bent. The core support and condenser were toast, though.
I think I might suspect a motor mount if the wheel swap doesn't stop this. Thanks for the hint!