Hi, I took out the lower unit to replace the impeller. I removed the four bolts that hold the lower unit and diconnected the shifting rod and it came right off. Now I'm trying to put it back and I line up the water tube and the shift rod but the main shaft won't go back in. I tried to use longer bolts to force it in after it was alligned but the propeller gets really hard to move and I think i might break something. Can anyone tell me if I'm missing something or if there's a trick to it? Thanks
