Yukon Posi or Eaton Detroit Locker

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

  1. Opa

    Opa Torque/a 8 piston figure

    Sounds like a plan!
     
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  2. alaskagn

    alaskagn Well-Known Member

    I've ran TruTracs in 7 different Vehicles and loved everyone of them. Check into the Wavetrac if they are available too. Supposed to be a little heavier duty then the TruTrac.
     
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  3. Opa

    Opa Torque/a 8 piston figure

    Tnx never heard of the Wavetrac before..but will check it out.
     
  4. BrianTrick

    BrianTrick Brian Trick

    Moser sells the Wavetrac. It’s an $800.00 unit,but very nice.
     
    Opa likes this.
  5. Opa

    Opa Torque/a 8 piston figure

    Tnx
     
  6. 1972Mach1

    1972Mach1 Just some guy.....

    Any of them will put up with your 622 ft.-lbs. A Detroit Locker is STOUT, but it's street manners leave some wishing they would've picked something else. They ratchet on tight corners, especially like a parking lot. I'm going to go with the few guys that said to run the Detroit TrueTrac. I've just starting running my first one about 7,000 miles ago and will never have anything else unless it's already in a car I buy. Mine has been through numerous hard launches, many laps on the autocross course, burnouts, daily driving, mountain roads, and snow/ice with about 500 ft-lbs hitting it. They're like magic, especially on a road course. Can't think of one negative to them.
     
    Last edited: Jan 16, 2020
    Opa likes this.
  7. BrianTrick

    BrianTrick Brian Trick

    D7AD43F9-C3AA-4DC3-9343-E643398CFDD7.jpeg 0501A1E5-65FF-463D-8F68-ADE32CA7CB6A.jpeg
     
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  8. Opa

    Opa Torque/a 8 piston figure

    I see you also have a 12 bolt with 33 spline axles like me, are your axles from Moser to?
    Brian thanks for chiming in, and for the experience info. Its all good things i hear about the TrueTrac and WaveTrac. And Monzaz can give competitive prices on the TrueTrac to, so if anyone needs one contact Monzaz.
    I have a new Ring and Pinion 4.10:1 gears still in the box, so if or when the TrueTrac goes in I can change my 4.56 gears for the 4.10 gears. The 4.10 will be good if the car ever gets a 4L80E trans and those gears are a;sp good for the 1/4 mile to.
     
    Last edited: Jan 16, 2020
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  9. Opa

    Opa Torque/a 8 piston figure

    http://www.wavetrac.net/technical.htm

    Here some info on the most Expensive new technology POSI unit the WaveTrac

    The Wavetrac is only made for the GM 12 bolt with 35 spline axles.
    12 Bolt 35 Spline

    So the TrueTrac still is the best option for me also pricewise the WaveTrac is $1000
     
    Last edited: Jan 16, 2020
  10. BrianTrick

    BrianTrick Brian Trick

    Yes,it is about $1000.00 because you need the top-secret bearings that only Moser sells. I even called Auto-Tech,the maker of Wavetrac,and they had zero information on the bearing manufacturer. They are literally in a plain white box with zero markings on anything. I bought a set for my 35-spline Detroit Locker.
    All said and done,the 33-spline is all you need because of carrier saddle bores and bearing availability. There IS a much nicer,larger bearing set that would work with the larger hub 35-spline Wavetrac and 35-spline Detroit Locker,BUT you can’t order a 12-bolt housing with larger bores. I have contacted Moser numerous times about trying to order a specific one,but they won’t do it. It kind of limits your market fornthe 35-spline units because of the bearing availability. I also called every shop I could find in a 200-mile radius,and inquired about boring a housing larger,and nobody had the ability to do it. I’m sure someone does though.
    To answer one of your previous questions,yes,I have Moser 33-spline shafts made. I just finished this custom 12-bolt Chevy last week with a set.
     

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  11. Opa

    Opa Torque/a 8 piston figure

    nice job there
     
  12. Opa

    Opa Torque/a 8 piston figure

    Are there any differences you know of between Moser axles made after 2000 and pre the year 2000 angle cutwise?
     
  13. monzaz

    monzaz Jim

    DO NOT USE the 12 bolt with 35 spline axles THOSE secret carrier bearings are JUNK...JUNK ...junk.
    They will blue up and over heat as they are just too thin for street driving. HAd 3 customers with super HIGH dollar cars eat those races up. I had to call Moser for the SECRET races....lol. races were actually blue the whole diameter. ...over heated JUNK.
    Drag racing they may be ok as not a lot of heat in a 15sec- 9 sec run.

    KEEP 33 spline for 12 bolt chevy...THAT IS PLENTY of axle shaft for anything to 9sec easy.

    Jim
    JD RAce
     
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  14. BrianTrick

    BrianTrick Brian Trick

    I have a bearing set that would be awesome “IF” you could get the carrier saddle bored.
    That’s why I limit those to 33-spline.
    That 35-spline is my own personal piece for that reason.
     
  15. monzaz

    monzaz Jim

    Caps are not big enough as it is.... the whole 12 bolt chevy would need a redrilled so you can make bearing caps bigger. It just IN MY OPINION is a waste of time with out a complete redesign or the cast of the center. It is just not worth the effort when you have a dana 60 already there and ford nine already there. I AM a GM guy but limits are limits and time is money... To me.
    This is business...I just do not have the time to tinker anymore. I can not keep up with just building the rears I have orders for.

    JIm
     
  16. monzaz

    monzaz Jim

    I am not trying to knock anything your doing... I am just looking physically the size of the existing caps on a 12 bolt Chevy and they are just big enough to keep 33 spline axles intact. even with moser housing caps... And for most of the customers cars and power that can actually HOOK to the ground on the street .... It is just not an opinion for making that effort for a small amount that would use it and most important pay for it.
    Brian I think you have a regular job and then do this on the side correct? So my thought process will be totally different. Even when I started I looked for items to build that would get me the most for the business to grow. I did the G-body custom rears and S-10 rears. Those we the up and coming rears that were left that were rear wheel drive. NOW if you look at the track there are GOBS of s-10 s taking over...THEY are the NEW vega/ Monza at the track.

    So what I am says ...When reading my posts try not to take things personally in knocking what you are and or want to do... I am just another opinion why you should or should not. Just want to be clear in explaining how and why I post.
    Jim
    JD Race
     
  17. BrianTrick

    BrianTrick Brian Trick

    Yes,that is another reason why I think Moser left a lot on the table when they made their 12-bolt casting. They could have done that.
     
  18. monzaz

    monzaz Jim

    I agree.
     

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