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pinion flange question

Discussion in '40- & 55-Series Tech' started by FJ_MONSTER, Apr 28, 2003.

  1. FJ_MONSTER

    FJ_MONSTER

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    ok this is what im doing.
    73 cruiser,just put in 4spd trans/3spd case conv.
    i got some 4spd d-shafts and put in the 3spd slip yokes for the t case side.but i now need the pinion flanges from 4 spd axles.
    question is are the pinion flange splines the same on these axles(early 73,later 75-?).
    i would think that if i get flanges that came off of a later cruiser with 4.10 ratio i would be fine.or can i get flanges off of a 3.70 ratio as well???
    last but not least what is the 4spd pinion nut size?
    3spd is 1 1/16" but the 4spd is bigger.
    please someone throw me a bone cause :stupid:
     
  2. woody

    woody Internet Fireman Staff Member

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    77-older pinion flanges are all 10 spline, so they interchange.

    Additionally, 77-older t-case brake drums and front output flanges are all splined the same, and can likewise interchange. Almost make t-case swaps TOO easy!
     
  3. FJ_MONSTER

    FJ_MONSTER

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