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Thread: Phantom Grip Limited Slip

  1. #1
    boostaholic
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    Phantom Grip Limited Slip

    I have a used Phantom grip LSD for sale. It will work in A555, A520, A523, A568, A543
    $60 shipped

  2. #2
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Phantom Grip Limited Slip

    Will it work in the A413 also? If so, I'll take it...
    https://db.tt/SV7ONZpQ
    Rob Lloyd
    '89 Daytona C/S

    2.5 T1 Auto
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    NHRA #3728 AF/S

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  3. #3
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
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    Re: Phantom Grip Limited Slip

    Yes it will.
    1994 Shadow Sedan. 2.2 N/A, A568 355,000 miles. (In the family since new).
    1987 Shelby CSX #418. Long term rebuild and restore.

  4. #4
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    Re: Phantom Grip Limited Slip

    Quote Originally Posted by ShelGame View Post
    Will it work in the A413 also? If so, I'll take it...
    I do not know for sure. Craig is pretty smart with these cars, and if he says it fits I would trust his word.

  5. #5
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Phantom Grip Limited Slip

    Thanks! I'll take it. Send me your PayPal info and I'll send it over...
    https://db.tt/SV7ONZpQ
    Rob Lloyd
    '89 Daytona C/S

    2.5 T1 Auto
    13.24 @ 100.5mph
    NHRA #3728 AF/S

    boostbutton.com
    tuning wiki

  6. #6
    boostaholic
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    Re: Phantom Grip Limited Slip

    Sold!

  7. #7
    turbo addict
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    Re: Phantom Grip Limited Slip

    just run extra magnets in the trans pan

  8. #8
    Hybrid booster
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    Re: Phantom Grip Limited Slip

    How does that LSD work??

  9. #9
    turbo addict moparzrule's Avatar
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    Re: Phantom Grip Limited Slip

    It goes between the spider gears and pushes out on them. Simple but affective. It's a good street LSD, not so much drag race.

  10. #10
    Supporting Member II Turbo Mopar Contributor tryingbe's Avatar
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    Re: Phantom Grip Limited Slip

    Quote Originally Posted by moparzrule View Post
    It's a good street LSD, not so much drag race.
    I disagree. I would not run it on the street, at all.

    This is not made by Phantom Grip.

    Less than 5000 miles.










  11. #11
    turbo addict moparzrule's Avatar
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    Re: Phantom Grip Limited Slip

    Quote Originally Posted by tryingbe View Post
    I disagree. I would not run it on the street, at all.

    This is not made by Phantom Grip.

    Less than 5000 miles.
    So thats not a PG unit? If not what was it and why should it be compared to a PG unit? Was this yours?

    Perhaps that one was not installed correctly....perhaps the spider gears were too worn out and should have been milled first.....perhaps the carrier bearings were worn out causing a bad load on the unit....perhaps that unit had way too stiff of springs for street use.

    There's way to many factors to show one mishap and say it's no good to run on the street. Thats like melting a wiseco piston, change your tune and install JE's, and then recommend to not to run wiseco's....the problem wasn't the piston, it was the tune. The problem there is not the PG unit, it's something else. I know people that have had a PG unit in for 50k miles.

  12. #12
    Supporting Member II Turbo Mopar Contributor tryingbe's Avatar
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    Re: Phantom Grip Limited Slip

    Or the design of this type of block LSD is inherently bad from the start. Think about it, every time both wheels are not spinning at the same speed, your are grinding metal against metal.

    http://www.omnipotentparts.com/produ...it%20%28LSD%29

    The unit in the picture was bought from Omni Potent, along with lathed spider gears prepared by them.

    I will never used another "block" LSD in my car no matter the make, due to their design.

  13. #13
    turbo addict moparzrule's Avatar
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    Re: Phantom Grip Limited Slip

    And everytime a piston goes up and down a cylinder it's metal against metal. The oil is there to lube it. Not sure what to say, but the worst I've seen a PG unit do is just stop working well after 20-30k miles. I would still contend that something else was wrong, or they use inferior metal to make the block. From the look of it, that appears to be the case. You can see clearly on this PG unit for sale, which is used, it has virtually no wear on it. If yours did that in 5k miles, I'm sure he had more than 50 miles on this PG unit, so it would have already been showing significant wear. You can only see slight signs of rubbing, but certainly no actual indentation of wearing down.

  14. #14
    Supporting Member II Turbo Mopar Contributor tryingbe's Avatar
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    Re: Phantom Grip Limited Slip

    Piston rings don't have ~700 lbs of force pushing behind it against the walls like these block LSD do. Oil works to lube the pistons/wall while oil works AGAINST block LSD as block LSD need to have metal grinding each other for it to work correctly.

    I'm done talking about these inferior products. Shelgame races in classes so he have to meet certain specs, but for others, the OBX LSD will work much better.

  15. #15
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Phantom Grip Limited Slip

    Quote Originally Posted by tryingbe View Post
    Piston rings don't have ~700 lbs of force pushing behind it against the walls like these block LSD do. Oil works to lube the pistons/wall while oil works AGAINST block LSD as block LSD need to have metal grinding each other for it to work correctly.

    I'm done talking about these inferior products. Shelgame races in classes so he have to meet certain specs, but for others, the OBX LSD will work much better.
    I need an OBX, too.

    This is for the new race car which currently has a welded diff (which isn't legal or safe) and breaks axles.

    The PG type may not be perfect, but its better than that...
    https://db.tt/SV7ONZpQ
    Rob Lloyd
    '89 Daytona C/S

    2.5 T1 Auto
    13.24 @ 100.5mph
    NHRA #3728 AF/S

    boostbutton.com
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  16. #16
    Hybrid booster
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    Re: Phantom Grip Limited Slip

    Interesting thread; although a for sale thread,
    the information should maybe be moved to a FAQ about the block LSDs.

    I had considered one for my hybrid a520/a555,
    but the OBX is surely the more reliable way to go; I've read.
    (also twice the price. lol)

  17. #17
    Supporting Member Turbo Mopar Contributor GLHS60's Avatar
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    Re: Phantom Grip Limited Slip

    Rob, if you happen to disassemble the diff. I have some clutches left over from an old posi project. They are fibre style that fit between the axle gear and carrier, to be used in place of the factory shim. I cant remember the thickness of the top of my head but either .060" or .090" sounds right. They are totally ATF compatible and will not contaminate your ATF as they wear. I still have a few side gears that were machined to accommodate the extra thickness of the clutch. There are many machining variances with our diffs. so some will accept the shim as is and some require machined side gears. I have had excellent results with these diffs. even with the Ford 7.5" spring and my own sorta "P.G". style blocker. The price of the OBX makes anything else obsolete!!

    Thanks
    Randy



    Quote Originally Posted by ShelGame View Post
    I need an OBX, too.

    This is for the new race car which currently has a welded diff (which isn't legal or safe) and breaks axles.

    The PG type may not be perfect, but its better than that...


    Randy Hicks
    86 GLHS60
    86 GLHS 373 : SOLD, but never forgotten
    89 Turbo Minivan
    83 Turbo Rampage : SOLD
    Edmonton,Alberta,Canada

  18. #18
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Phantom Grip Limited Slip

    Quote Originally Posted by GLHS60 View Post
    Rob, if you happen to disassemble the diff. I have some clutches left over from an old posi project. They are fibre style that fit between the axle gear and carrier, to be used in place of the factory shim. I cant remember the thickness of the top of my head but either .060" or .090" sounds right. They are totally ATF compatible and will not contaminate your ATF as they wear. I still have a few side gears that were machined to accommodate the extra thickness of the clutch. There are many machining variances with our diffs. so some will accept the shim as is and some require machined side gears. I have had excellent results with these diffs. even with the Ford 7.5" spring and my own sorta "P.G". style blocker. The price of the OBX makes anything else obsolete!!

    Thanks
    Randy
    Its on my bench now.

    I'd love to have a set of those clutches. Even 2 or 3 sets if you have them. My car will need a fresh trans eventually, too. I was planning for an OBX, but if the clutches help this diff out, I'd be willing to stick with it.

    Check out my LeBaron project log...
    https://db.tt/SV7ONZpQ
    Rob Lloyd
    '89 Daytona C/S

    2.5 T1 Auto
    13.24 @ 100.5mph
    NHRA #3728 AF/S

    boostbutton.com
    tuning wiki

  19. #19
    Supporting Member Turbo Mopar Contributor GLHS60's Avatar
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    Re: Phantom Grip Limited Slip

    Rob, if you P.M. your mailing address I'll send you a couple of clutches to experiment with.
    If you want, include your phone # and I'll give you a call and share what I can as I'm a 1 finger typer .

    Thanks
    Randy


    Randy Hicks
    86 GLHS60
    86 GLHS 373 : SOLD, but never forgotten
    89 Turbo Minivan
    83 Turbo Rampage : SOLD
    Edmonton,Alberta,Canada

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