01 360 slack in rear end?? | FerrariChat
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01 360 slack in rear end??

Discussion in 'Technical Q&A' started by compvett, Oct 14, 2010.

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  1. compvett

    compvett Karting

    Jun 28, 2010
    138
    South Carolina
    Full Name:
    Bill G
    #1 compvett, Oct 14, 2010
    Not sure what is going on with my car, but hope someone can help. This 360 just had a new center transmisson mount installed as well as both lower motor mounts. When you back up and turn, you can feel something moving around. It feels like a bad motor mount or trans mount. Seeing how all that is new now, we have been trying to trace down the problem.
    When you back up you can feel and hear something hitting. When you take off and turn left or right you can feel and hear a chattering or rumbling. Once you straighten the car out everything is perfect. It almost feels like the entire rear end is shifting. But under careful inspection, we can't find anything moving. Both CV Axles has alot of movement from left to right, but I am told that they are supposed to do that. If you push in the clutch pedal the problem goes away. Also we checked the rear differential fluid and it is clean and on the mark. Thanks in advance for any help!
     
  2. swilliams

    swilliams Formula 3

    Jun 14, 2006
    1,407
    Bowling Green, KY
    Full Name:
    Scott
    #2 swilliams, Oct 14, 2010
    Your describing the limited slip locking up. Change the fluid in the Transmission that has the lsd additive in it. Do a search on transmission fluid. I think redline with lsd additive is the best.
     
  3. GTtech

    GTtech Guest

    Apr 28, 2010
    9
    Istanbul
    Full Name:
    Serkan
    #3 GTtech, Oct 15, 2010
    Hi

    Please control you right and left axend.

    Hope will help
     
  4. compvett

    compvett Karting

    Jun 28, 2010
    138
    South Carolina
    Full Name:
    Bill G
    #4 compvett, Oct 15, 2010
    Thanks, got the fluids ordered. I will followup and let you know how it turns out.
     
  5. speedy1wrc

    speedy1wrc Rookie

    Sep 29, 2010
    49
    Buffalo, NY
    Full Name:
    Mark Wetzel
    #5 speedy1wrc, Oct 18, 2010
    What are you doing to check CV play? How much are you seeing?
     
  6. SoftwareDrone

    SoftwareDrone F1 Veteran
    Sponsor Owner

    Jan 19, 2004
    7,860
    San Jose, California
    Full Name:
    Mike
    #6 SoftwareDrone, Oct 25, 2010
    I tried the Redline with the friction modifier added and, although it will help with the chatter, your shifting will suffer. Trust me on this. My mechanic found an oil that not only eliminated the chatter, but my car has never shifted better! It is the Redline Shock Proof Lightweight Gear Oil. It is for racing applications and already has the friction modifier built in. The shifting was so sluggish with the straight Redline with the friction modifier added afterwards, that I was cracking the plastic shifter bushings, which only made the problem worse. I went back to the straight Redline and just put up with the chatter for awhile, until we discovered the shock proof. Now the car shifts like butter, and I can shift super fast (faster than with the straight Redline).
     
  7. compvett

    compvett Karting

    Jun 28, 2010
    138
    South Carolina
    Full Name:
    Bill G
    #7 compvett, Oct 26, 2010
    I serviced the rear diff with Redline oil and fricition modifier. Within about 20 miles or so the problem is gone! Thanks for all the tips!
     
  8. Schumi76

    Schumi76 Formula Junior

    Feb 15, 2006
    329
    NC
    Full Name:
    Marco
    #8 Schumi76, Oct 26, 2010
    Hey Mike,

    Are you sure that the Redline Shock Proof Lightweight Gear oil has the friction modifier already built in ??? Thanks !!!
     
  9. Schumi76

    Schumi76 Formula Junior

    Feb 15, 2006
    329
    NC
    Full Name:
    Marco
    #9 Schumi76, Oct 26, 2010
    Also is that a 75W90 oil ???
     
  10. SoftwareDrone

    SoftwareDrone F1 Veteran
    Sponsor Owner

    Jan 19, 2004
    7,860
    San Jose, California
    Full Name:
    Mike
    #10 SoftwareDrone, Nov 15, 2010
    According to Rifledriver it does. I couldn't imagine it not having it in there as my chattering problem disappeared instantly when we put it in there.
     
  11. SoftwareDrone

    SoftwareDrone F1 Veteran
    Sponsor Owner

    Jan 19, 2004
    7,860
    San Jose, California
    Full Name:
    Mike
    #11 SoftwareDrone, Nov 15, 2010
    I've already put thousands of miles on my car with the shock proof gear oil, and it has never ran or shifted better!
     

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