I found a higher ratio rear end for my '56 Victoria from one of the members here on y-blocks forever.  Doing some research to find out what my current ratio is (V-8 automatic as originally purchased) there was a statement made on another website that the '56 exclusively had fine spline for their axle shafts.  I have never heard such a thing before.  I made a call to a knowledgeable friend and he said that statement is "hogwash".

OK, guys.  I know you know the answer.   Does the '56 have different splines on their axles?

Early 55s had course splines and i think some later 55s had the fine splines the 56 axles were fine
.Jack i will count the splines on both for you in the next couple days,also will check the 4.11 splines   Carl

'49 to early '55 had 17 splines, late '55 and '56 had 28 splines.

John - "The Hoosier Hurricane"

John is correct  Carl

positive here in oz we had 2 types

A 56 with an automatic usually had a 3.31 rear ratio.  Check the shop manual.



54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

1956 cars with auto trans had 3.22 gears,56 police interceptor cars with auto trans had 3.31 gears  recheck your manual Paul    Carl