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Best Aftermarket 4L60E

This is a discussion on Best Aftermarket 4L60E within the Firebird / WS6 forums, part of the Vehicle Specific category; Need a good solid aftermarket 4L60E that wont break the bank, mods are in sig. Thanks for any leads or ...

  1. #1
    Member Nightmare00's Avatar
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    Black
    2000 WS6 Trans Am

    Best Aftermarket 4L60E

    Need a good solid aftermarket 4L60E that wont break the bank, mods are in sig.

    Thanks for any leads or referrals!

  2. #2
    Moderator 98TransAmWs-6's Avatar
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    Black/ Silver
    98 TA WS6/ 01 C5 Corvette

    Extreme Automatics, Finish Line Transmissions, Performabuilt, and RPM transmissions all make good and affordable 4l60e transmissions. You will be safe with any of them.

    Performabuilt is a site sponsor and a few people here have their transmissions and happy with them but I have no experience with them.
    Last edited by 98TransAmWs-6; 04-05-2014 at 10:56 AM.
    1998 Trans Am WS6 - Phantom
    421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
    (Coming Soon) BMR DSL, UMI TQ Arm
    421 LQ9 14.8:1 on E85 Build/

  3. #3
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    pajeff02's Avatar
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    '02 WS.6 / '07 Suburban

    I installed a Performabuilt Level II in our Trans Am and love it. Also purchased their converter and received a 2 year warranty. Performabuilt is based in Sugarloaf, Pennsylvania, and I arranged a meeting to watch them build my transmission. Here is the thread with lots of pics: PerformaBuilt Level II - Pro Race (Build Pics) I also have an install thread with pics if you want to see the process.

  4. #4
    Member Nightmare00's Avatar
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    usa
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    Black
    2000 WS6 Trans Am

    Thanks Guys!!

  5. #5
    Senior Member cpop98ws6's Avatar
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    Black/Black
    98 WS6/04 Sierra Dmax

    Performabuilt Level II here, love it.

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