Quote:
Originally Posted by Baron Von Zeppelin
... 3L was 3.23 posi with metallic brakes aka 42:13 memo
70-9 is an offbeat axle designator but have seen a couple others coded that way in past few days of searches.
= Performance axle ratio with Posi (  3.23 .... ok )
64's are a messy bunch of codes from plant to plant
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Another L code 3.23 posi with metallic brakes from PMD.
70-3 this time versus 70-9
Read something once about 3.55 was standard with manual at one time in 64 , and 3.23 was standard at another time in 64.
Maybe Wangers car was during the 3.55 period , but he wanted 3.23.
pure guess towards the coding.