grinds in all gears

[Mike 1931]

Hi,
I am working on a 30 coupe and my question is when trying to shift into first the trans grinds a lot before it will go into gear.
The engine r.p.m. is very low and the clutch is adjusted properly, I removed the inspection plate in the bell housing and the throu out bearing is not spinning with the clutch out. I suspect something is dragging but I dont know, the engine was just installed 2 months ago by the owner.
Any help would be great before I have to pull the rear and trans.

Mike1931