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Thread: 4L60E Transmission Modifications

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  1. #1
    Join Date
    Jun 2008
    Location
    spring, texas
    Posts
    171
    I have the TCI billet servo setup and I can shift into O/D at WOT. I don't know about Superior.
    2009 YUKON DENALI,BLACK ON BLACK, LS3, Dynomax 4" cat-back, VARA-RAM INTAKE, KOOKS LT's, MSD IGNITION, LS VVT hot cam, ZO6 springs, HP tuned to 421awhp, 12.54 at 108mph on 24's.TUNING FROM THE DARKSIDE.

    06 KAWI BRUTE FORCE 916cc 6.80's in the 1/8th. ALL MOTOR. New found drug addiction is getting "HER" into the 5's. "EVER HAD A QUAD TAKE YOUR MONEY?"

  2. #2
    Join Date
    Dec 2006
    Location
    Bloomingdale Illinois
    Posts
    287
    It is a tuning issue. The trans is only going to do what it is told with a 4l60e. Servo's have really no effect on it not shifting. The idea on an aftermarket servo is for more holding power. Not to make the trans do a WOT shift.

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