1991 ford f-600 transaxle swap
 

I am reinstalling the transaxle, it slid right in but the clutch pedal seems in a bind?? I cant push it. What could be causing this. I slid the transaxle back out about 2-3 inches and still couldnt get it to budge. the trans. is a fs4005b to a 6.0 diesel. Any help is greatly appreciated .Thanks