Yukon Posi or Eaton Detroit Locker

Discussion in 'Got gears?' started by Opa, Jan 12, 2020.

  1. Opa

    Opa Torque/a 8 piston figure

    I want to change out my Strange Spool with a good POSI unit who can withstand the 622lbf torque of our Buick engine.
    Specs of my rearaxle is:
    2000 Build MOSER GM12 bolt, 33 spline Moser axles, 4.56 gears, Strange Spool.

    I have found two units an Detoit Locker and a Yukon Gear Posi unit.
    Anyone have experience with either of the 2?

    Also again Strange is claiming that there 33 spline axles are different then the Moser 33 spline axles.
    They said that in 2010 also when I bought the Strange Spool, they told me I must have Strange axles to, otherwise it will not fit right. That was BS from Strange, everything fitted right (like the Moser customer department told me).

    Yukon link: https://www.summitracing.com/int/parts/yga-26014/overview/

    Eaton Detroit Locker link: https://www.summitracing.com/int/parts/dtl-914a575/overview/

    Moser Eaton Detroit Locker link: https://www.moserengineering.com/12-bolt-chevy-car-3-series-33-spline.item
  2. DasRottweiler

    DasRottweiler -BuickAddict-

    First two are 4 series, last one is a 3 series, not sure if you're aware of that.....
    Following, as I may have a new posi in my future as well. Jim
  3. Andrew Sury

    Andrew Sury Well-Known Member

    Either will laugh at your 622 ftlbs of torque.
  4. Opa

    Opa Torque/a 8 piston figure

    Yes i was tnx for the heads up
  5. Opa

    Opa Torque/a 8 piston figure

    That’s good to know but which do prefer or have experience with?
  6. Andrew Sury

    Andrew Sury Well-Known Member

    Go with the Yukon. Way easier to get parts for if you happen to wear it out ten years from now.
    Opa likes this.
  7. Opa

    Opa Torque/a 8 piston figure

    Tnx thats good info the Yukon it is then.
  8. Quick Buick

    Quick Buick Arlington Wa

    Yukon. From Randys. give me a break. Much better products out there.
  9. DasRottweiler

    DasRottweiler -BuickAddict-

    I'd get your finger off that trigger til Brian Trick and/or Monzaz reply to this thread. They build differentials for a living....Jim
    Opa and Quick Buick like this.
  10. jmos4

    jmos4 Well-Known Member


    Used Detroit Lockers in lifted trucks never had a failure or issues other than it's a locker, skips tires around corners and they have a tendency to unload rather violently enough to scare you using in daily drivers

    Opa likes this.
  11. Gary Bohannon

    Gary Bohannon Well-Known Member

    How about a Detroit/Eaton "Truetrac"? No jerk, ratcheting, or worn clutches, just smooth worm gears forever.
    They are very strong.
    Last edited: Jan 12, 2020
    1972Mach1, Darron72Skylark and Opa like this.
  12. monzaz

    monzaz Jim

    So are you going to stop going t0 the tracK?
    622 is a lot of torque for any posi unit....
    IF you are just hanging on the street the posi will be fine....BUT the track will destroy a posi with the weight and torque you have.
    But then there is the drive ability factor too. Detroit locker is garbage to drive on the street but will hold better than the Yukon dura grip posi
    The dura grip will have more road manners but flipping the coin with super sticky track and slicks.
    YOu kind of have to ask yourself where your going to do most of your driving and how much head ack your going to deal with.

    If your doing freeway Full spool is garbage and Detroit locker (Grizzley locker yukon stuff) ain't going to be much better.
    If your just hanging around in town most guys around here just leave the full spool in, every light they are gunning it anyway.
    They usually trailer to the track anyway.

    I think I can get you a better deal through Yukon too I am a dealer for them and Nitro gear and axle.

    JD Race
    Andrew Sury likes this.
  13. Bens99gtp

    Bens99gtp Well-Known Member

    Would some other form of locker be better....sure its not cheaper, but air or electric locker? Alot of trail ppl use them so they can lock or unlock but the stress they are under had to be high
  14. Gary Bohannon

    Gary Bohannon Well-Known Member

    Truetrac, look into this design
    Do yourself a favor....
    You wont break it.
    It won't pop, snap, jerk
    You won't wear it out.
    Both wheels will turn together year after year
    No stupid ratchets.
    No stupid cones.
    No stupid clutches.
    No stupid additives.
    **Once you true trac
    **You'll never go back
    Last edited: Jan 12, 2020
  15. Opa

    Opa Torque/a 8 piston figure

    Races are non existent downhere and after 14 years of racing i want to cruise again.
    My plan is to sell the whole car as it is a great bracket car that has won many many races. Trading the car is also an option. Or sell the engine, and put a 400-450hp 455 back in that is good for street driving.
    If i cannot sell the engine i will detune it with another cam, but that will not be optimal with the SP2A stage 3 intake.
    Trading the engine could be an option to for a more stockish one.

    for now i use the car for short city driving to carmeets in town. And have no problems doing that with the Spool.
  16. monzaz

    monzaz Jim

    This happens all the time up here in the northern states... They build a motor that has no street manners and then try to band aid the thing to a driveable state and end up selling the headache after 2-3 years buying a NEW hot rod car.
    YOURS was a race car so it is slightly different deal....BUT up here everyone looks for 500+ HP and thinks the car will have idle and road manners.
    MAYBE if you have a 502 and bigger cube or turbo, supercharger, etc.

    They are trying to do it with a naturally aspirated motor.

    IF all you want to do is burn outs just leave a mild 268-274 caM advertised duration, put a stall of about 3000 ...gear ratio does not matter make sure the motor has SOME life... compression good, NOT HIGH.... just not ring blow bye and valve issues etc. Time and carb it correct and you will have TONS of tire ripping fun.

    That is what most guys want here... burn the tires and go get ICE CREAM!...lol.
    Opa likes this.
  17. Opa

    Opa Torque/a 8 piston figure

    I knew what i had and have used it as such for racing 14 years and it was great fun and often a great challenge to finish in the top 3 all the time. But times change and we change to.
    We, me and the car made our mark with that unknown musclecar brand for most people., and showed them what we could do .
    And made them think twice when we battled what should be superior parts, very expensive build cars, and lots of cocky owners who thought you always can buy s race with the $$$.
    And thought there was no skill of anykind needed.
    I hope we can make someone happy who is looking for a car that has been setup for racing. Or with the race parts.
  18. BrianTrick

    BrianTrick Brian Trick

    Put a 33-spline Tru Trac in it.
    Darron72Skylark likes this.
  19. Opa

    Opa Torque/a 8 piston figure

    That is the plan if the car doesn’t sell or we can’t trade it with a cruiser
  20. Gary Bohannon

    Gary Bohannon Well-Known Member

    Install a TA288-94 cam.
    Install a built quadrajet
    Add a black vinyl top.
    Add stock Buick rally wheels
    Own and drive the coolest vintage innocent looking street sleeper around.
    Opa likes this.

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