a bit of help please with my rear end

Discussion in 'Got gears?' started by wildcat1562, Jul 1, 2020.

  1. i have my 65 wildcat and the posi will not release, making the tires jump and sounds really bad when moving now
    how do i get it back, took it apart and no filings, no sharpes no brightness in the oil, all looks good, oil looked great

    moves fine in and out when i have it on the rack

    just full time posi

    no idea here,
    please send me an email if you have any idea, i do not get on much anymore with all the treatments


  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

  3. 2manybuicks

    2manybuicks Platinum Level Contributor

    Even though the title of this thread just BEGS for a joke, for once I will pass on the opportunity and let someone else take a shot at it.

    BUICKRAT Torque Rules!

    Your rear end just needs a bottle or 2 of stink juice (as we used to call it).
    Lucy Fair likes this.
  5. SpecialWagon65

    SpecialWagon65 Ted Nagel

  6. BrianTrick

    BrianTrick Brian Trick

    Did it have additive in it before? It doesn’t sound like you need any more friction modifier.
  7. Lucy Fair

    Lucy Fair Nailheadlova

    If you already have a friction modifier in the rear just go and find a big space. There, just run some eights. It helped in my Riv. I couldn't disengage LSD for more than 100 miles but eights did the job.

  8. monzaz

    monzaz Jim

    How long has it been since the car was on the road? Sometimes the units will literally weld themselves together over long periods of down time 5-10 years etc.
    In this situation I would tear the unit out totally disassemble check all parts clean and reassemble and see if there is anything wrong physical inspection . IF a clutch did get truly welded to another clutch it could break a spider gear which you do not want.
  9. Mark Demko

    Mark Demko Well-Known Member

    I had a '75 Electra with a 3.08 Posi, it was doing the same thing when it got warm, BANG BANG BANG turning a corner, only when towing my 24' Sea Ray, it was unerving:mad:
    I took the cover off, oil was full of metallic particles, and a couple clutch pieces in the bottom, don't know exactly what caused it, but I removed the carrier, and replaced the clutches, the gears seemed fine, reassembled, and all was well.
  10. monzaz

    monzaz Jim

    The clutches were likely early style clutches which had big recessed cuts to move fluid through the clutches better BUT when you had the slip slip addtive issues the bang and hard releases and hooking shattered the daisy wheel clutches and then they fell out here and there and that made it even worse.
    NEW redesigned solid clutches will not do that.
    Or you can install carbon fiber or composite clutches too for a more quiet hook.
  11. SpecialWagon65

    SpecialWagon65 Ted Nagel

    Greg replaced fluids and it sounds like its working well.

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