Front axle-shaft difference???

[yellowk20]

I tried to put U-joint style shafts in my Rezzeppa style front end but they would not fit because of the seal.

Why is this?? also whats the lube procedure for the U-joint style axles??

 

[gringeltaube]

See the differences here: http://www.steelsoldiers.com/deuce/11357-king-pin-2.html#post295949

G.