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Its time for 4.10's!!

This is a discussion on Its time for 4.10's!! within the Drivetrain forums, part of the LSx Technical Help Section category; well im finally gonna get some 4.10's! What are the best ones to get(quitetest)? How hard is the install? Im ...

  1. #1
    The Pulse of the Maggots SicWs6's Avatar
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    Smile Its time for 4.10's!!

    well im finally gonna get some 4.10's! What are the best ones to get(quitetest)? How hard is the install? Im pretty mechanically inclined, ive just never messed with the internals of a differential. Any suggestions would be greatly appreciated!!!
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    Bmike Dillard99's Avatar
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    Motive Gears or Richmonds and yes I hear it can be difficult installing
    gears I know alot of people who jack there rears by a bad gear install
    but if youre experienced or know a good shop that is you should be good
    Last edited by Dillard99; 07-23-2007 at 09:24 PM.
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    Quote Originally Posted by SicWs6 View Post
    well im finally gonna get some 4.10's! What are the best ones to get(quitetest)? How hard is the install? Im pretty mechanically inclined, ive just never messed with the internals of a differential. Any suggestions would be greatly appreciated!!!
    If you have never done it then make sure you either have someone experienced help you or take it to a shop. It's critical that it be done right you will ruin the new gears. I hear motive's are the quietest ones.

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    The Pulse of the Maggots SicWs6's Avatar
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    ok thanks alot!!!

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Go w/ Richmond!

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    O U 8 1 2 Spaz's Avatar
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    do not install these your self... unless you have some one with you with experience... trying to get the proper back lash it a bitch even with the right tools...

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    2 SS's are better than 1 Jays00ss's Avatar
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    my buddy I work with use to work at a differential shop and put mine in. Had it done in 2 hours. I would Highly suggest haveing them done buy someone who has done it before.
    As for brand, I have motive. I would suggest Motive performance or precision or yukon they are the best and the brands my buddy recomended. I would NOT recomend richmond they are noisy and the 1 brand my buddy told me to avoid. My motives are quiet but I only have 3.90's.
    When you get them done, Pay particular attention to the break in rules. You can use just regular gear oil to break in the gears. Drive for 15 minutes, stop let the rear end cool for at least an hour or 2, do this 3 times to "quench" the gears. Drive easily for 500 miles, Change the gear oil, I would suggest royal purple. Then give her hell.
    I would suggest Saveing your money and get a 9" or 12 bolt (preferably a 9") for the $500 (gears, rebuild kit, oil, gasket, labor) you will spend on the gear swap, you'll be 1/4 of the way to a new and 10X better rearend. I wish I would have done this.
    I am now saving for the 9".
    Last edited by Jays00ss; 08-01-2007 at 03:43 AM.
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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by Jays00ss View Post
    my buddy I work with use to work at a differential shop and put mine in. Had it done in 2 hours. I would Highly suggest haveing them done buy someone who has done it before.
    As for brand, I have motive. I would suggest Motive performance or precision or yukon they are the best and the brands my buddy recomended. I would NOT recomend richmond they are noisy and the 1 brand my buddy told me to avoid. My motives are quiet but I only have 3.90's.
    When you get them done, Pay particular attention to the break in rules. You can use just regular gear oil to break in the gears. Drive for 15 minutes, stop let the rear end cool for at least an hour or 2, do this 3 times to "quench" the gears. Drive easily for 500 miles, Change the gear oil, I would suggest royal purple. Then give her hell.
    I would suggest Saveing your money and get a 9" or 12 bolt (preferably a 9") for the $500 (gears, rebuild kit, oil, gasket, labor) you will spend on the gear swap, you'll be 1/4 of the way to a new and 10X better rearend. I wish I would have done this.
    I am now saving for the 9".
    They are noisy because of the high grade steel, which is stronger. I have Richmond 4:10s with no gear whine at all, because first of all, they are set up correct. Secondly, like you said, break in is very important.

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    Senior Member camarojunky74's Avatar
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    ive always used richmond, and never had any whine, 3.90's 4.10's 4.56's its all in the install and the break in. ive actually heard of people putting there gears in the oven for any given time to help with this.

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    I have motives in mine. Only time I ever hear them is in reverse. Although theres a slight possibility that my exhaust has something to do with that.
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    Senior Member camarojunky74's Avatar
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    white, white and pewter
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    lol nice

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