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3.73 gear swap

This is a discussion on 3.73 gear swap within the Manual Transmission forums, part of the Drivetrain category; i have had 3.73 gears for over a year and haven't had them put in yet because i have been ...

  1. #1
    see you in my rear view
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    3.73 gear swap

    i have had 3.73 gears for over a year and haven't had them put in yet because i have been getting mixed opinions about them compared to the 3.42 gears. I have had friends tell me there will be slight difference in speed but my drivability will be a lot worse. anyone like to share their opinion. espically someone who has 3.73's ?

  2. #2
    Junior Member degenerate's Avatar
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    98 WS6

    every post ive seen always recommends going with the 4.10 swap, since with 3.73 the gain isnt that much. I installed 4.10s recently and there is a big difference and the driveability is still fine for me. It's a daily driiver and I still can't complain. Yes there is alot more shifting though. There is no reason why 3.73 would be worse, so I say go for it, but recommend opting for the 4.10s

  3. #3
    Junior Member DJenkin's Avatar
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    Quote Originally Posted by degenerate
    every post ive seen always recommends going with the 4.10 swap, since with 3.73 the gain isnt that much. I installed 4.10s recently and there is a big difference and the driveability is still fine for me. It's a daily driiver and I still can't complain. Yes there is alot more shifting though. There is no reason why 3.73 would be worse, so I say go for it, but recommend opting for the 4.10s

    4.10 is the way to go man

  4. #4
    Bad ass WS6 00WS6_TA's Avatar
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    2000 Trans Am

    What is your RPM at when you cruise at 70 with 4.10 gears? around 1900?

  5. #5
    see you in my rear view
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    thanks for the info guys. I got the 3.73's for a steal at $72 so i think i will stick with them for a while, if i desire more take-off i will surely go with the 4.10's. (then some better tires )
    [B]2K1 WS.6 m6: SLP Lid, MAF, smooth bellows, Y-Pipe, Loudmouth, 160 Stat, TB bypass, TR Velocity Stack, SLP Short Throw, K&N, Taylor 10mm wires w/ iridium NGK plugs, and 255lph F/P, Comp Cam, Chromemoly Rods, Comp Valve Springs

  6. #6
    Junior Member DJenkin's Avatar
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    Quote Originally Posted by 00WS6_TA
    What is your RPM at when you cruise at 70 with 4.10 gears? around 1900?
    i have the 16 inch wheel it turn around 18 -1900 rpms but at any time u give it gas you will feel it pull. 1,2,3,4 it will hold u tight in the seat

  7. #7
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    Quote Originally Posted by DJenkin
    i have the 16 inch wheel it turn around 18 -1900 rpms but at any time u give it gas you will feel it pull. 1,2,3,4 it will hold u tight in the seat

    Can't wait to put mine in!!!

  8. #8
    GM Service Advisor
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    2002 Pontiac T/A Firehawk

    I used 3.73's for a couple of years, 'till I messed them up, I liked them...thet seemed "just right".

    Now I have 4.10's and I like them better, makes the car a "beast" grappling for traction in 1st and 2nd.
    2002 T/A Firehawk,M6,Black,IROC Spoiler,Chrome wheels,base suspension and diff.SLP CAI,Y-pipe,SFC,STB,Lightweight steel flywheel,SLP pulley,descreened MAF,B&M Ripper,steel 3/4 shift fork,SLP rear LCA,4:10 gears,T/A girdle with stud kit,HPP3.

  9. #9
    Ratdaddy07
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    I use the 4.10's in my 6 speed and they are great. supposedly like putting 3.73's in the auto.

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