'39 Top load Transmission clutch won't depress

[Ziffer]

I just put the clutch and trans on my 292 y-block with a Craiger bell housing. Everything went together smoothly but once I got it into the chassis and hooked up the linkage it is not depressing the 3 clutch arms. I can see through the inspection hole that the throw out bearing slides ahead but when it comes into contact with the 3 arms movement is stopped. I pushed the clutch pedal in with my leg but stopped when I felt I was going to break something.

Thought?

Thanks in advance for the help.

Z