i've been selling bits and pieces off a '64 gmc i bought for the bed & frame. someone wants the tran & bellhousing but i'm having problems getting them seperated from the 305v6.

i've removed the starter and top four bellhousing bolts but i can't seem to be able to break it loose. i haven't completed my shop manual collection yet so i don't have anything on the v6 assembly so i'm asking here; what am i missing?

the engine/tran has been removed from the truck and is sitting on the ground if that makes a difference.

thanks

bill graham