Hi Everyone,
Just bumping my own thread, hopefully someone benefits from this info.
No more clunkkkkk!!!!
The problem was the springs/shocks combination. The OME 880's were just too stiff for the 5100's (3rd gen specific) to cope with on a full compression rebound, resulting in the clunk. Everything was installed to specs with toyota strut mounts, springs mounted on the lowest perch.
There were no real problems with driving or anything, it wasn't even too stiff for what are basically lift springs. It just made a clunk when going over certain large speed bumps or very steep incline entrances to parking lots and driveways.
I upgraded to 6112's. If you're on the fence, they're definitely worth the extra money. I don't have hub to fender measurements yet, still settling. I went with 7 drivers side / 6 passenger, I'll update with measurements at some point.