1997 Mazda B4000 transmission ticking

[97Mazda4000]

Manual transmission ticking when in gear and when the gas pedal is pressed, all gears. It's been doing it for over a year (should have checked sooner, my bad, I know). I've drained the fluid and now metal chunks, so from what I can tell it's not internal, it does sometimes have trouble going into lower gears but that seems to be a different thing (synchronizer...?). The transmission had a rebuild and a new clutch shortly after the rebuild. I took over the project from someone else who did the rebuild, I put in the new clutch and throwout bearing when I put the engine in, the ticking has been happening the whole time I've had the truck, thought it was a normal thing until I drove another ranger with the same setup. Any ideas would be appreciated

 

[SenorNoob]

Does it do it if you rev it in neutral? Reverse too?

 

[97Mazda4000]

No for neutral and I'll have to double check in reverse...

 

[Shran]

Did someone put zip ties on the driveshaft as a joke?

Could be something like a loose heat shield on a catalytic converter, wiring connector loose & bouncing on something, etc. Lot of possibilities.