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Technical What Posi Unit To Buy

Discussion in 'The Hokey Ass Message Board' started by 48FordFanatic, Apr 4, 2015.

  1. 48FordFanatic
    Joined: Feb 26, 2011
    Posts: 1,336

    48FordFanatic
    Member
    from Maine

    What is the best aftermarket posi unit for a Ford 8-inch ?
     
  2. Mike51Merc
    Joined: Dec 5, 2008
    Posts: 3,788

    Mike51Merc
    Member

    I just got a Yukon and probably will install it today. Has a good reputation with the 4x4 crowd and the whole kit is made in the USA. Got the Yukon Trac-Loc, Motive gears, and install kit (Timken bearings, gaskets, shims, etc.) for $585 from www.quickperformance.com.
     
    loudbang likes this.
  3. krylon32
    Joined: Jan 29, 2006
    Posts: 5,970

    krylon32
    Alliance Vendor
    from Nebraska

    Here at the shop we use parts from John's Industries, rear end specialists.
     
  4. prpmmp
    Joined: Dec 12, 2011
    Posts: 1,010

    prpmmp
    ALLIANCE MEMBER

    http://www.ford8and9inchrears.com/ Have a 8 inch in my 32, Sent my Brother and his friend with a hurtin 9 inch to him and he fixed it right in front of them!!! He's one of those guys you can shoot the shit all day long with!! Pete
     
    Last edited: Apr 4, 2015
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  5. aaggie
    Joined: Nov 21, 2009
    Posts: 2,529

    aaggie
    ALLIANCE MEMBER

    I bought a used 8.8 for a project and on inspection there were a few teeth missing from the spider gears. I researched prices on the internet and found out I could buy a complete new posi assembly from Ford Motorsport for less money than a set of spider gears. I think it was around $225 a year ago. Shop around.....
     
  6. blowby
    Joined: Dec 27, 2012
    Posts: 6,116

    blowby
    Member
    from Nicasio Ca

    ^^ Boy that's cheap. Big thread on the HAMB somewhere I researched when I was looking. Some dependence on main application; street, strip, snow, ease of release in cornering and braking... There are clutch and clutchless (worm type) units.
     
  7. Merlin
    Joined: Apr 9, 2005
    Posts: 2,546

    Merlin
    Member
    from Inman, SC

    I second the Yukon Trac-Loc Had one in my 3 window and never had any problems.
     
  8. 48FordFanatic
    Joined: Feb 26, 2011
    Posts: 1,336

    48FordFanatic
    Member
    from Maine

  9. Dirty Dug
    Joined: Jan 11, 2003
    Posts: 3,590

    Dirty Dug
    Member

    I have a stock early Mustang 8" posi pumpkin for sale if you're interested.
     
  10. langy
    Joined: Apr 27, 2006
    Posts: 5,735

    langy
    Member Emeritus

    I have an Eaton TrueTrac in mine, best lsd i ever tried.
     
    gimpyshotrods likes this.
  11. DDDenny
    Joined: Feb 6, 2015
    Posts: 12,722

    DDDenny
    Member
    from oregon

    Detroit locker
    OOPS you said 8 in.
    Sorry
     
  12. langy
    Joined: Apr 27, 2006
    Posts: 5,735

    langy
    Member Emeritus

    Doug you can get a Detroit locker for an 8", excellent for strip use but not so good for a driver in my opinion
     
  13. gimpyshotrods
    Joined: May 20, 2009
    Posts: 16,422

    gimpyshotrods
    Member

    Eaton TrueTrac. I have four of them. Best limited-slip device, period.
     
  14. DDDenny
    Joined: Feb 6, 2015
    Posts: 12,722

    DDDenny
    Member
    from oregon

    Hopefully the locker for the 8 in. is the new generation "soft locker" style.
    I have a DL for my roadster 9 in. and everybody tells me I'm gonna hate it.
    But then again they said the same thing about my tires, and my motor, and my.....
    I'm gonna love every miserable minute of it.
     
    loudbang likes this.
  15. langy
    Joined: Apr 27, 2006
    Posts: 5,735

    langy
    Member Emeritus

    I started off with a spool in my Willys but it was pretty dodgy when it was damp so I changed to s Detroit locker which was way better but I didn't like the way it unloaded when the coming off the power so changed to a Eaton truetrac, it's now absolutely as smooth as silk and feels just like a daily driver when driven normally but locks up as sweet as when the hammer goes down, a massive thumbs up from me !!!
     
    gimpyshotrods likes this.

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