Ok, so i bought an axle from a junkyard for $25 its in good shape
The tag says it from an automatic, my question is will it work for my manual civic? The automatic one is just a bit skinnier i believe.

 

the splines on the axle are a little shorter, that should be the only difference. but it should work 100 percent.

 

hmm okay i wonder why the auto one seems a bit skinnier tho

 

yes

 

yes, the auto and manual d-series axels are interchangeable.... I did auto to manual swap and used the auto axels..

 

Supposedly they are slightly different length according to a friend, but should be fine.
The AZ axles are just aftermarket...cheaper, weaker, inferior made pieces, like all AZ brand stuff. Sorry, but I would rather cross the street and buy from Advance...

 

100% interchangeable, never noticed any difference at all. The only difference is ABS vs Non ABS.

 

Good to know.