Originally Posted by Wrenchbender Ret.
The block is not perfectly square. You may have the wrong sides facing the axles.

George
I believe that it will only go in one way, since there's a hole that the spider shaft goes thru. He just has to pry the axle shafts farther out. If the block came out, it will go back in.

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.