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Thread: Lost 3-4 clutch pack...exploring options...

  1. #31
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Well we need upped pressures in the tune as Allen suggested and/or oil mods that Greg might know. I know that I've had low mileage stock 3-4 problems that I've done nothing but put more clutches in and have not seen them back (in this town I would know for sure if they failed again).....this leads me to believe that sometimes there are excessive clearances or something else in the build that leads to these 3-4 failures....

  2. #32
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    oh ya, on top of the cost of the 80e, add another 2K, lol.

    your 60e will hold for a while to have fun with.

  3. #33
    Join Date
    Mar 2006
    Location
    Mesquite
    Posts
    8,176
    Yeah Greg mentioned drilling a small hole somewhere to eliminate fluid from accumulating - I'll let him explain it rather than me butcher it.

    I can get Louis to up the line pressure.

  4. #34
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Now we're getting somewhere....

  5. #35
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    The 3-4 clutch pack has a history of being partially engaged during high RPM passes while in gears 1 and 2. This is caused by transmission fluid getting slung to the walls of the drum, packing in tight and applying pressure to the clutches. This leads to premature clutch failure. When you buy a blue plate special kit for the 3-4 clutches they include a instruction sheet on where, how and why to do the modification. Oh yeah, I have the instruction sheet still.
    Last edited by RedHeartbeat; 12-01-2008 at 10:58 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #36
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Goodie!

    See, it's nice to have friends, huh?

    LOL

  7. #37
    Join Date
    Feb 2008
    Location
    edmond, ok
    Posts
    299
    Man that sucks so are you going to be able to rebuild it this saturday?
    07 GMC ccsb 1500 4x4, front replacment bumper, 285 70 r17 on 17" black helo max 6, Dual flowmasters dumped.

  8. #38
    Get a instrument cluster with a transtemp gauge. You must do this in rder for any other trans to serive
    99RCSB Broke because I wasted thousands and thousands of dollars on my truck.

  9. #39
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Looks like a party at Greg's.

  10. #40
    Join Date
    Feb 2008
    Location
    edmond, ok
    Posts
    299
    When and what time i might have to take my new truck on a road trip.
    07 GMC ccsb 1500 4x4, front replacment bumper, 285 70 r17 on 17" black helo max 6, Dual flowmasters dumped.

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