Page 1 of 2 12 LastLast
Results 1 to 20 of 21

Another 3:90 vs. 4:10 ?

This is a discussion on Another 3:90 vs. 4:10 ? within the Drivetrain forums, part of the LSx Technical Help Section category; I have been told 4:10's would be too much for my stock ws6 m6. I have lt's ory, and lm1. ...

  1. #1
    Member Lawnman's Avatar
    Join Date
    Aug 2006
    Location
    ohio
    Age
    51
    Posts
    397
    lookin for a ws6

    Another 3:90 vs. 4:10 ?

    I have been told 4:10's would be too much for my stock ws6 m6. I have lt's ory, and lm1. I was told to go with 3:90's. What do you guys think / Also what brand of gears ? I want the ones that will last the longest under normal driving conditions.

  2. #2
    Senior Member Bottesini's Avatar
    Join Date
    Sep 2007
    Location
    Denton, Texas soon Lafayette, Louisiana
    Posts
    2,955

    Blue
    2002 Z28 Camaro M6

    I don't think the difference will be that much between 3.90s and 4.10s especially in the higher gears.

    As for the strongest the best for holding up that me and my friends have found is the GM which are 7 5/8" compared to the 7.5" of the after market brands. Unfortunately, it is still a 10 bolt and will not hold up to alot of abuse if you use sticky tires.

  3. #3
    Member Lawnman's Avatar
    Join Date
    Aug 2006
    Location
    ohio
    Age
    51
    Posts
    397
    lookin for a ws6

    re

    Quote Originally Posted by Bottesini View Post
    I don't think the difference will be that much between 3.90s and 4.10s especially in the higher gears.

    As for the strongest the best for holding up that me and my friends have found is the GM which are 7 5/8" compared to the 7.5" of the after market brands. Unfortunately, it is still a 10 bolt and will not hold up to alot of abuse if you use sticky tires.
    I do drag race maybe 10 times a year and autox. I always just use plain old street tires, so I never have traction until 3rd gear.

  4. #4
    Senior Member Bottesini's Avatar
    Join Date
    Sep 2007
    Location
    Denton, Texas soon Lafayette, Louisiana
    Posts
    2,955

    Blue
    2002 Z28 Camaro M6

    Quote Originally Posted by Lawnman View Post
    I do drag race maybe 10 times a year and autox. I always just use plain old street tires, so I never have traction until 3rd gear.

    I know the feeling, always have to remind myself to shift a little softer into second so I don't break the rear end completely lose

  5. #5
    Member Lawnman's Avatar
    Join Date
    Aug 2006
    Location
    ohio
    Age
    51
    Posts
    397
    lookin for a ws6

    It is the third gear shift I usually mess up when drag racing. It is either too slow or I miss it.

  6. #6
    Rice Hungry GottaHaveLS1's Avatar
    Join Date
    Oct 2005
    Location
    Connecticut
    Age
    30
    Posts
    1,316

    Black
    1999 Trans Am M6

    so GM rear end gears are stronger than say motive or richmond??
    I know that richmond gears are known to whine a lot... which is something I will absolutely hate. Which are quieter, gm or motive?

  7. #7
    2 SS's are better than 1 Jays00ss's Avatar
    Join Date
    Jun 2007
    Location
    Lathrop, Missouri
    Posts
    2,479

    NBM / Silver
    00 SS / 71 SS Elcamino

    I had Motive Performance 3.90's in my 10 bolt. They were quiet and I liked them HOWEVER, I always wished I went with 4.10's. My car is set up like yours now. I would not hesitate at all with 4.10's in your case. Maybe a 50-75 rpm difference @ 75 MPH.

    I changed to a 9" and got 4.30's and absolutely love them with my 6 speed. I am at 2150 rpm @ 75 MPH with a 275/35/18 wheel in the back. So glad I went with them. Again I went with Motive performance and they are nice and Quiet. HOWEVER, I will have to go to a taller tire once my Cam and intake go in When I go to the track.

    To me 3.90's were a big waste of money. If you are going to spend the money, Make it worth it.
    Last edited by Jays00ss; 12-03-2007 at 04:15 PM.
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

    1971 SS ElCamino 402 Big Block 550HP

    2006 Silverado 2500HD 496 cubic inches of pure muscle

  8. #8
    2 SS's are better than 1 Jays00ss's Avatar
    Join Date
    Jun 2007
    Location
    Lathrop, Missouri
    Posts
    2,479

    NBM / Silver
    00 SS / 71 SS Elcamino

    Quote Originally Posted by GottaHaveLS1 View Post
    so GM rear end gears are stronger than say motive or richmond??
    I know that richmond gears are known to whine a lot... which is something I will absolutely hate. Which are quieter, gm or motive?
    Richmonds will whine worse than your ex girlfriend I would steer clear of them. All gears will whine a little if you do some hard dragstrip launches especially with a six speed. But Richmonds are the worse I have ever used (Not in a f-body but an old chevelle I had with a 12 bolt)

  9. #9
    Rice Hungry GottaHaveLS1's Avatar
    Join Date
    Oct 2005
    Location
    Connecticut
    Age
    30
    Posts
    1,316

    Black
    1999 Trans Am M6

    Quote Originally Posted by Jays00ss View Post
    Richmonds will whine worse than your ex girlfriend I would steer clear of them. All gears will whine a little if you do some hard dragstrip launches especially with a six speed. But Richmonds are the worse I have ever used (Not in a f-body but an old chevelle I had with a 12 bolt)
    yea, i'm pretty sure i'm gonna go with 4.10 motives. If it whines i'll just have to get a head and cam swap some day to cover the noise.
    Is the master install kit a good idea? i read the list of the stuff that comes in it but i don't know what most of parts do/are.

  10. #10
    2 SS's are better than 1 Jays00ss's Avatar
    Join Date
    Jun 2007
    Location
    Lathrop, Missouri
    Posts
    2,479

    NBM / Silver
    00 SS / 71 SS Elcamino

    Quote Originally Posted by GottaHaveLS1 View Post
    yea, i'm pretty sure i'm gonna go with 4.10 motives. If it whines i'll just have to get a head and cam swap some day to cover the noise.
    Is the master install kit a good idea? i read the list of the stuff that comes in it but i don't know what most of parts do/are.
    Yes, diffenately get a master rebuild kit and change everything that comes with it (Bearings and seals). If you are planning on a head and cam, You might want to skip the gear swap and save for a new rear end. The 10 bolt is a pyle of crap. For the $600 you will spend doing the gear swap you would be 1/3 of the way there in getting a new 9".

  11. #11
    Rice Hungry GottaHaveLS1's Avatar
    Join Date
    Oct 2005
    Location
    Connecticut
    Age
    30
    Posts
    1,316

    Black
    1999 Trans Am M6

    Quote Originally Posted by Jays00ss View Post
    Yes, diffenately get a master rebuild kit and change everything that comes with it (Bearings and seals). If you are planning on a head and cam, You might want to skip the gear swap and save for a new rear end. The 10 bolt is a pyle of crap. For the $600 you will spend doing the gear swap you would be 1/3 of the way there in getting a new 9".
    I totally agree with you on that one but I won't be able to afford a h/c swap for at least four years (college bills & loans)

  12. #12
    Member SS#337's Avatar
    Join Date
    Nov 2006
    Location
    Arlington, TX
    Posts
    113

    Onyx Black
    2002 SS

    Quote Originally Posted by Jays00ss View Post
    I had Motive Performance 3.90's in my 10 bolt. They were quiet and I liked them HOWEVER, I always wished I went with 4.10's. My car is set up like yours now. I would not hesitate at all with 4.10's in your case. Maybe a 50-75 rpm difference @ 75 MPH.

    I changed to a 9" and got 4.30's and absolutely love them with my 6 speed. I am at 2150 rpm @ 75 MPH with a 275/35/18 wheel in the back. So glad I went with them. Again I went with Motive performance and they are nice and Quiet. HOWEVER, I will have to go to a taller tire once my Cam and intake go in When I go to the track.

    To me 3.90's were a big waste of money. If you are going to spend the money, Make it worth it.
    I have been looking through several forums and found this one. So, in your opinion, 410's in a m6 is the way to go as far as not wasting money? I currently have 342's in my 'dailydriver' and it has not seen any track time. I am looking to increase some power to play with every once in a while. Also, are there any other things I should be installing if I decide on the 410's.
    -thanks

  13. #13
    2 SS's are better than 1 Jays00ss's Avatar
    Join Date
    Jun 2007
    Location
    Lathrop, Missouri
    Posts
    2,479

    NBM / Silver
    00 SS / 71 SS Elcamino

    Quote Originally Posted by SS#337 View Post
    I have been looking through several forums and found this one. So, in your opinion, 410's in a m6 is the way to go as far as not wasting money? I currently have 342's in my 'dailydriver' and it has not seen any track time. I am looking to increase some power to play with every once in a while. Also, are there any other things I should be installing if I decide on the 410's.
    -thanks
    I would say, and many others as well, that 4.10's are the way to go with a 6 speed. I have 4.30's and absolutely love them on the street. If you do decide to swap gears, keep in mind the 10 bolt is a weak rear end and adding a steeper gear will only make it weaker. I would diffenately get a master rebuild kit to go along with it.

    Also, I would recomend After market Rear lower control arms, Sub-frame connectors, Panhard bar, and torque arm. these will reduce wheel hop and help plant the power to the pavement.

    Once again, I would not recomend a gear swap in the 10 bolt and I would save your money for a new 9" (for the $600 + you will spend, you are 1/3 of the way to a much better rearend). Rule #1 when it comes to the 10 bolt is to Upgrade not rebuild. Just my .02.

  14. #14
    Member SS#337's Avatar
    Join Date
    Nov 2006
    Location
    Arlington, TX
    Posts
    113

    Onyx Black
    2002 SS

    ok, I kinda' got that feeling about upgrading instead rebuilding from the information I have been reading. I know it costs $$$$ to add power an all but was looking for a short cut....which then the old saying then comes into play...."pay now or pay later".
    What would you suggest as the next logical step after the upgrade to a 9"? If my sig attached properly, you can see what I have.
    2002 Onyx Black Camaro SS, m6, SLP Cold Air Induction, SLP Lid, K&N Air Filter, SLP 160 Stat, SLP MAF Type B, Y-Pipe Dual Cat, Out & Tip Exhaust, SFC, STCB, PHB w/HCA's, Rear Lower Skip Shift Harness, Hyper-Tech LS1 Power Programmer.

  15. #15
    2 SS's are better than 1 Jays00ss's Avatar
    Join Date
    Jun 2007
    Location
    Lathrop, Missouri
    Posts
    2,479

    NBM / Silver
    00 SS / 71 SS Elcamino

    Quote Originally Posted by SS#337 View Post
    ok, I kinda' got that feeling about upgrading instead rebuilding from the information I have been reading. I know it costs $$$$ to add power an all but was looking for a short cut....which then the old saying then comes into play...."pay now or pay later".
    What would you suggest as the next logical step after the upgrade to a 9"? If my sig attached properly, you can see what I have.
    You said it "Pay now or pay later" You are just throwing your money down the drain on a 10 bolt.

    After you upgrade, I would throw that MAF away and put your stocker back in. They are good for 500 hp stock and the after market ones do nothing but overly lean out your motor. I would then get some long tube headers and a off road y-pipe or true duel exhaust. (Might need to check your emission laws) I don't have to worry about it. Then I would go with a nice head and cam package and then throw that hyper tech away and get a good dyno tune from somebody with LSX experience.. After that its up to you but thats about all I am going to do for a while. Maybe when my truck is paid off I might supercharge mine but thats a whole other story. Hope this helps.

  16. #16
    Member SS#337's Avatar
    Join Date
    Nov 2006
    Location
    Arlington, TX
    Posts
    113

    Onyx Black
    2002 SS

    I will keep it all in mind as I continue to research and decide on what i want to do. Thanks for all the info.

  17. #17
    O U 8 1 2 Spaz's Avatar
    Join Date
    Nov 1999
    Location
    over here...
    Age
    39
    Posts
    25,692

    []D [] []V[] []D
    1999 trans am

    if you wish to go super charged ESPECIALLY TURBO!!! keep a 3:42 in the ass of your car... at very very most a 3:73 even if you are M6... my dad had 3:93 in his lingenfelter vette and hated it cause even with 315 tires (i thinkk they were 345 tires tbh i'm not sure..) but he couldn't get traction ig he just stabbed the gas pedal at 80 mph...

    with that said... if you are N/A... go with as steep as your can get away with!!!

  18. #18
    Junior Member
    Join Date
    Dec 2007
    Location
    brooklyn,ny
    Posts
    6

    blue
    1998 b4c

    My friend changes ALOT of gears in his shop and motives are the quietest I currently run a stock ls1 with 100k on it new valve springs rockers YANK ST3600 3:42 and BFG DR I go 12:50s When had the guy from Yank on the phone he said an easy upgrade would be gears and that I would really feel the difference.I think that if I stay away from MT tires and keep the BFG's the rear will last another season .Now when I upgrade to a fresh motor then the stock rear has to go GOOD LUCK

  19. #19
    Member
    Join Date
    Sep 2007
    Location
    bay area
    Age
    33
    Posts
    197

    NBM
    1999 Hardtop Z28

    4.10s. motives are prerun and are generally quieter than all the rest. i cruise at 80mph at 2200rpm. still get about 20-22mpg on the freeway with heads/cams.

  20. #20
    Junior Member
    Join Date
    Dec 2007
    Location
    brooklyn,ny
    Posts
    6

    blue
    1998 b4c

    Did you change the reluctor gear in your rear I was wondering if I need a new one when I upgrade to 3:73???????????

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •