Transmission Main Shaft issue

[bogdonj]

Need your help again guys! overhauling the roadster transmission and order all new bearings for it. Notice the main drive gear had some pitting and wear on the nose. So I went ahead and ordered a new one and pressed the bearing on it. Now here is the issue. When I install the Main drive gear into the front of the tranny and bolt the housing that hold the throw out bearing I cannot rotate the shaft to move the gears. If I loosen the bolts it moves freely. I have check to make sure the washer is on the main shaft and the bearing that goes in the main drive gear is there. When I replace it with the old drive gear and bearing and tighten it down it will move freely. I post a picture of both shafts.

Does anyone have any recommendations to solve this? Is the bearings a bit bigger than before? All parts were ordered from Synders. Bolts/snap rings/ gaskets are all the prefect size.