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Thread: 4.10/4.30/4.56 Which route to go?

  1. #16
    Join Date
    Aug 2003
    Location
    Caledon East, Ontario
    Age
    63
    Posts
    654
    Thanks for the post, ultravorx. At this point I'm more inclined to try mechanical mods. And thanks Billy for the perspective. With a car like this, I can't start worrying about mileage.

  2. #17
    Join Date
    Jun 2003
    Location
    Connecticut
    Age
    60
    Posts
    6,837
    Quote Originally Posted by CRUZTAKER
    you will notice a big difference with just a tap of the accelerator after the change. If I had to do it again, I would have done 4:30's.
    Hmmmm, I'm a bit surprised to hear anyone say this from merely a gear change to 4.10's. But I guess it's how you look at it, and what your expectations are. When it comes to High performance, i guess I'm one of those who just can't get enough.

  3. #18
    Join Date
    Feb 2004
    Location
    South Florida
    Age
    64
    Posts
    9,810
    I've done the stage 1 chip, Denso plugs and 180 stat with the 410 rear gears. A real big difference from stock. On the high way doing 105 my rpm's are at 3300-3400. with plenty left and the gas mileage isn't bad at all. And with the price of gas going up I wouldn't go any bigger than 410's .

  4. #19
    Join Date
    Apr 2017
    Location
    Baltimore Md
    Age
    37
    Posts
    3
    Hello BillyGman, hope all is well. I read your comments on 4.56s i want them for my 03 Marauder, could you tell me what kit you used & the special part needed please. Few questions, will i need to upgrade from stock driveshaft, i have LT headers no cats full stainless exhaust, FloMas40 stock tips, 4.10s & SCT dyno tune, will i need to get the car retuned for 4.56s?

  5. #20
    I'm just here to see if BillyGman ACTUALLY responds...

    And God Bless & Keep Paul Casey...I hope EVERY day is partly cloudy, low humidity and 52 degrees up there Paul...and the 1320' is sticky and the 60's are QUICK!

  6. #21
    Join Date
    Aug 2011
    Location
    Wisconsin
    Posts
    4,167
    Quote Originally Posted by Misduh1sdatpast View Post
    Hello BillyGman, hope all is well. I read your comments on 4.56s i want them for my 03 Marauder, could you tell me what kit you used & the special part needed please. Few questions, will i need to upgrade from stock driveshaft, i have LT headers no cats full stainless exhaust, FloMas40 stock tips, 4.10s & SCT dyno tune, will i need to get the car retuned for 4.56s?
    Thread is from 2004, not sure if you'll get an answer.

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
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    ______________________________ ________________

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