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Thread: How to tell if Shelby Limited Slip

  1. #21
    Supporting Member Turbo Mopar Contributor 2.216VTurbo's Avatar
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    Re: How to tell if Shelby Limited Slip

    Don't know for sure or if it adds anything to this thread Joe, but Tim P. told me 20+ years ago that the Chicklett LSD's were made by Saines out of Florida. Shelby's peeps did some testing on these units installed in 525's where they put one wheel on dirt/sand and one wheel on dry pavement and did a high RPM clutch drop. Dunno how many times they tried that but the result more than once was a split trans case . Too bad, how sweet would it be if all GLHS's got an LSD from the Whittier plant

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  2. #22

    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by 4 l-bodies View Post
    Mike
    Mike the claw and pawl doesn't wear out. The only weird thing with the C&P design it sounds funny sometimes when making left turn under heavy throttle. Mine was in my SC for 20+ years with no signs of distress. Are you confusing that with the Phantom grip? Those wear out and lose their effectiveness, not this one.
    Mike Bachman told me a million years ago of a couple or few LSD's for 555's that sold through Shelby dealership. I do know of one GLHS that has one installed with a555. Entire tranny came came Whittier plant. If memory serves me diff was part Siemens and part Dana. Then there was the Future Auto clutch type LSD's.
    Here is a couple other pics of yet another LSD for our cars from WAY back in the day. I don't know much about this one either except it was installed in either a a525 or a465 4 speed. Looks like it had a rough life. I sent these pics to Cliff Ramsdell years ago and he said he has seen a few of these too. Can't remember what they were called. Guy that owned this raced ice and road rally stuff in L-bodies in WI and MN.
    Todd
    Todd, I'm coming by your house some time to get a tour of the spare parts in your garage. You seem to have one of every unique piece for our cars.
    [SIZE="3"] [B]Jon Trotter[/B][/SIZE] [B]1985[/B] Dodge Shelby Charger, Currently decommissioned [B]1987[/B] Shelby GLHS, #937 [B]1987[/B] Shelby Lancer, #628 [QUOTE=Reeves;587010]I can be ready. Please send pics of wife. _____DodgeZ add comments here______[/QUOTE]

  3. #23
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by minigts View Post
    Todd, I'm coming by your house some time to get a tour of the spare parts in your garage. You seem to have one of every unique piece for our cars.
    Let's carpool.

  4. #24
    We Todd D dot D Turbo Mopar Staff sdac guy's Avatar
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    Re: How to tell if Shelby Limited Slip

    I have a diff in a box (it belongs to Tim P). It is a Shelby unit that is a clutch type diff. I was told it was made from a Dana unit (from a Jeep) with the axle inserts for our axles welded in. It is for a 525 trans, which I was told was the only trans they were made for. I don't know how many were made or if they were sold to the public by Shelby at all.

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  5. #25
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    Re: How to tell if Shelby Limited Slip

    I've have one of the Shelby chicklet types in the hybrid 525 that Cliff Ramsdell built for my GLHS. Same as the first pics Todd posted. Sometimes at low speeds, for example a turn in traffic, the chicklets stick in the locked position and you get the inside wheel fighting the outside wheel but then it releases and all is fine. Also, it sometimes has a moment of lag to it; one wheel starts to spin before the chicklets fall into place and lock the other side. On the track it works beautifully.
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  6. #26
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: How to tell if Shelby Limited Slip

    Barry, I seem to recall seeing the Dana variant in a catalog, black and white picture, with a price tag that, at the time, made me put it out of my mind as a possibility, but I've always though about making one myself, just never knew what the OE application was ...

    Mike

    - - - Updated - - -

    Barry, I seem to recall seeing the Dana variant in a catalog, black and white picture, with a price tag that, at the time, made me put it out of my mind as a possibility, but I've always though about making one myself, just never knew what the OE application was ...

    Mike
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  7. #27
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by cordes View Post
    Let's carpool.
    Quote Originally Posted by minigts View Post
    Todd, I'm coming by your house some time to get a tour of the spare parts in your garage. You seem to have one of every unique piece for our cars.
    Some of my buddies have already volunteered to help wife "clean out all the junk" in the attic, garage, basement, and shed of my home when I kack. Those guys are so thoughtful... It's like the buzzards are circling. hehe
    Todd

  8. #28
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    Re: How to tell if Shelby Limited Slip

    Thanks all for the information,and pictures !
    Guess this was a hot topic by the replies.

    Will be inspecting 89 CSX # 53 with a microscope,within the next couple of weeks.
    Surely it would be exciting to see anything special ( since its a factory test car ).

    Joe

  9. #29
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    Re: How to tell if Shelby Limited Slip

    Is it drivable? Go around a corner, maybe you can hear it.
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  10. #30

    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by 4 l-bodies View Post
    Some of my buddies have already volunteered to help wife "clean out all the junk" in the attic, garage, basement, and shed of my home when I kack. Those guys are so thoughtful... It's like the buzzards are circling. hehe
    Todd
    We're offering to do it now, no questions asked.
    [SIZE="3"] [B]Jon Trotter[/B][/SIZE] [B]1985[/B] Dodge Shelby Charger, Currently decommissioned [B]1987[/B] Shelby GLHS, #937 [B]1987[/B] Shelby Lancer, #628 [QUOTE=Reeves;587010]I can be ready. Please send pics of wife. _____DodgeZ add comments here______[/QUOTE]

  11. #31
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    Re: How to tell if Shelby Limited Slip

    Reviving this thread as I have something more to add.
    So a prototype Shelby 555/568 LSD came into my possession. This is unit #2. This is a never used viscous LSD that also utilizes a 4 pinion differential like what comes stock on 555/568. It probably wasn't ever used because it required a modified right side output shaft axle. I had a stock jack shaft axle shortened and re-splined, so it could now be used. Unlike the 555/568 Quaife, this one can use a full length spline in the right side. I was curious, so I took the differential apart to count how many viscous disks were installed. There is 31 viscous disks installed. They're about an inch thick stacked together on the drivers side of the diff. Like the Quaife, it requires a minor trimming of the magnet area in the case. Took about 1 minute to do with a rotary file. Then set the bearing preload to about .009-.010". It is now a bolt in LSD that will fit either the 555 or 568. Here are some pics. First pic is stock 555 4 pinion diff.
    Todd
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    Last edited by 4 l-bodies; 05-27-2024 at 07:12 PM.

  12. #32
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by 4 l-bodies View Post
    Reviving this thread as I have something more to add.
    So a prototype Shelby 555/568 LSD came into my possession. This is unit #2. This is a never used viscous LSD that also utilizes a 4 pinion differential like what comes stock on 555/568. It probably wasn't ever used because it required a modified right side output shaft axle. I had a stock jack shaft axle shortened and re-splined, so it could now be used. Unlike the 555/568 Quaife, this one can use a full length spline in the right side. I was curious, so I took the differential apart to count how many viscous disks were installed. There is 31 viscous disks installed. They're about an inch thick stacked together on the drivers side of the diff. Like the Quaife, it requires a minor trimming of the magnet area in the case. Took about 1 minute to do with a rotary file. Then set the bearing preload to about .009-.010". It is now a bolt in LSD that will fit either the 555 or 568. Here are some pics. First pic is stock 555 4 pinion diff.
    Todd
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  13. #33
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: How to tell if Shelby Limited Slip

    Thanks for the pics and info Todd. I have one in CSX #42, and it works very well.

    Could you please clarify which side uses a stock axle? Mine need rebuilt, but I would just as soon make another one for a spare. If I recall correctly, mine had a shortened driver's side and pass side. I don't recall which side wouldn't go in that lead me to that initial discovery though...

  14. #34
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by cordes View Post
    Thanks for the pics and info Todd. I have one in CSX #42, and it works very well.

    Could you please clarify which side uses a stock axle? Mine need rebuilt, but I would just as soon make another one for a spare. If I recall correctly, mine had a shortened driver's side and pass side. I don't recall which side wouldn't go in that lead me to that initial discovery though...
    Yes Brian,
    The left side axle is unchanged from stock, on the right side the whole 4 pinion carrier is pushed about an inch to the passenger side (right). So that side needs to use a shortened axle. Pictured below is how far a stock jack shaft fits when it bottoms out on the pinion in the diff. Then second picture is with axle shortened and re-splined. I'll try to also post the machine work specs.
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  15. #35
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: How to tell if Shelby Limited Slip

    Thanks a ton. I would love the specs for what needs to be done. I really need to get a mill and a lathe...

  16. #36
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by cordes View Post
    Thanks a ton. I would love the specs for what needs to be done. I really need to get a mill and a lathe...
    You did open up the PDF file I attached right? That should be the info any machinist would need. Of course you could do this to the long style (unequal length) axle too.

  17. #37
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by 4 l-bodies View Post
    You did open up the PDF file I attached right? That should be the info any machinist would need. Of course you could do this to the long style (unequal length) axle too.
    I didn't see the attachment under the pictures. Thanks a ton!

  18. #38
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by cordes View Post
    Thanks a ton. I would love the specs for what needs to be done. I really need to get a mill and a lathe...
    Moser Axles did a pair for Alex like 20 years ago for $20ea. to re-spline the stub shafts Tim's old Spirit
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  19. #39
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by "Top Fuel" Bender View Post
    Moser Axles did a pair for Alex like 20 years ago for $20ea. to re-spline the stub shafts Tim's old Spirit
    Wow. Even 20 years ago, that was darn near free for that level of machining. It would take me some time to get that setup and machined.

  20. #40
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    Re: How to tell if Shelby Limited Slip

    Quote Originally Posted by "Top Fuel" Bender View Post
    Moser Axles did a pair for Alex like 20 years ago for $20ea. to re-spline the stub shafts Tim's old Spirit
    Yeah, that was a freebie for sure. Dutchman axles did mine, I did the measurements, they did the machining. Mine wasn't that cheap, but still not bad.
    Todd

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