98 GT REAR AXLE RATIO, VERY CONFUSED

Discussion in 'Drivetrain' started by yellowgt98, Jan 15, 2015.

  1. RichV

    RichV Well-Known Member

    Messages:
    4,227
    Likes Received:
    247
    Joined:
    May 6, 2012
    Location:
    CO
    Huh, something is off.

    I've done it a bunch as well. What I do is put a chalk mark on the tire at 12 o'clock, then a chalk mark on the pinion flange. Then turn the wheel one revolution and watch the chalk mark on the pinion, count revolutions on pinion. Trans in neutral of course. The count of revolutions should be close to one of the below #s.

    Most common ratios are 2:73, 3:08, 3:27, 3:55, 3:73, 4:10. Assuming you have a 8.8 GT rear.
     
  2. lwarrior1016

    lwarrior1016 Moderator Staff SN95 Supporter

    Messages:
    5,760
    Likes Received:
    834
    Joined:
    Sep 22, 2014
    Location:
    South Mississippi
    [MENTION=20521]yellowgt98[/MENTION] did you ever get this thing figured out?
     
  3. yellowgt98

    yellowgt98 New Member

    Messages:
    14
    Likes Received:
    0
    Joined:
    Jan 9, 2015
    I know this is an old post, but I'm answering now, just in case someone else needs the answer. The reason I was getting incorrect reading was that my limited slip was completely gone. Both wheels have to be moving at the same time for the revolutions to be correct and get the correct readings. The car will still drive, but not with the wheels both rotating together. Hope this helps