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Thread: re-gear before tune?

  1. #1
    Join Date
    Mar 2008
    Location
    benbrook tx
    Posts
    35

    re-gear before tune?

    will it work for a little while before i get a tune. my truck have the stabilitrak so i dont know if the new gears will mess that up. going form 3.42 to 4.10 or 4.56

    scott
    2008 GMC SLE crewcab factory 20's 5.3 flowmaster CAI

  2. #2
    Join Date
    Aug 2007
    Location
    Gramercy
    Posts
    945
    it will be ok, but your speedo will be WAY off. id advise you to get a re-tune ASAP.

    i just did 4:10s an i was doing "70" an it wasnt even 60mph i was getting passed by everyone including grannys
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

  3. #3
    Join Date
    Apr 2005
    Posts
    182
    Gonna throw your shift points off too
    2000 RCSB Z-71 6l swap 12.8 Gone but not forgotten


    2008 CCSB "tow truck" Slooowwww
    1999 RCSB "WRK TRK" 4.late but getting there.

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