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Changing Gear Ratio in a 9"

This is a discussion on Changing Gear Ratio in a 9" within the Drivetrain forums, part of the LSx Technical Help Section category; I know the Third Member can be changed out (no brainer)...I was just wondering if the gears themselves could be ...

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Changing Gear Ratio in a 9"

    I know the Third Member can be changed out (no brainer)...I was just wondering if the gears themselves could be changed while keeping the Third Member you paid $1k for.

    I was wondering because I found a cheap 9" for sale, but it has 3.42s and I want 4.10s, but I don't want to have to buy a new Third Member to accomplish this.

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    The Bandit Wesman's Avatar
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    Quote Originally Posted by ls1camino View Post
    I know the Third Member can be changed out (no brainer)...I was just wondering if the gears themselves could be changed while keeping the Third Member you paid $1k for.

    I was wondering because I found a cheap 9" for sale, but it has 3.42s and I want 4.10s, but I don't want to have to buy a new Third Member to accomplish this.
    The ring and pinion themselves can be easily removed from the 3rd member, so I don't see why there would be any issues with swapping to a different gear ratio set.
    Last edited by Wesman; 12-11-2008 at 11:41 AM.

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    yes the gears alone can be swapped

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    Moderator Firebirdjones's Avatar
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    That is one of the nice things about 9 inchers,,,they didn't have series specific carriers for different ratios. Unlike GM that had 2-3-4 series carries for certain gear sets,,,ie: 3 series for a 3.42 or 3.73,,,,,4 series for a 4.10 or 4.56 etc.....
    You can stick any gear you like in a 9 inch without worries.

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    Member NavdeepWS6's Avatar
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    i want to go back to my 3.42 i currently got a 3.73 10 bolt but will upgrade to a 9inch or 12 bolt before i ever take it to the track

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    Senior Member Bottesini's Avatar
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    Quote Originally Posted by NavdeepWS6 View Post
    i want to go back to my 3.42 i currently got a 3.73 10 bolt but will upgrade to a 9inch or 12 bolt before i ever take it to the track
    I should have a set of 3.42 ring gears next week. I was just planning on taking the whole rear end to the junk yard, but if you want the gears then I would be happy to send them to you for a steal. Of course this depends on how they look when I take them out, should be fine since they are quiet.

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    2 SS's are better than 1 Jays00ss's Avatar
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    thats one of the main reasons to buy a 9". easy gear changes. I have had many over the years. They are bullitproof and easy maintenance.
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

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