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Locker In The Front Vs Locker In The Rear?

Discussion in 'Early CJ5 and CJ6 Tech' started by 1957Willys, Jul 11, 2017.

  1. 1957Willys

    1957Willys Member

    What are the pros and cons of having a locker in the front compared having one in the rear? Or vice versa?
     
  2. jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    No real advantage to a front locker. Everything I've read/watched on YouTube suggests money on a rear locker is much better spent.
     
  3. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    If I had to pick only one, I'd pick rear. Overall, the increases in traction and the minimal handling drawbacks outweigh having one only in the front.

    If it's a selectable locker, the advantages of a front locker in conjunction with the rear are huge. The difference in how a jeep will scale obstacles is night and day.

    But only front without the rear, the drawbacks when it comes to steering just aren't worth it, IMO.
     
    73 cj5 likes this.
  4. jpflat2a

    jpflat2a what's that noise?

    For where I go, what I do, the desert terrain in my area, I would always have a limited slip of some make and model up front.
     
  5. masscj2a

    masscj2a Member 2023 Sponsor


    I agree, front only is a pain, but selectables, front and rear is best of both worlds. I have an eaton in the rear of my 47 and a lunch box in front. I am going to remove the lunch box and go open, until I can pick up another eaton for my dana 30. the clicking drives me nut, more so than normally. and if you down hill in loose stuff, you sometimes go in the wrong direction , but if you could flip a switch and unlock, you have a little better control. my 2 pennies.
     
  6. Mcruff

    Mcruff Earlycj5 Machinist

    I have an (Aussie) lunchbox locker in my Dana 30, never had a problem steering with power steering. I have a power lock in the rear now but my front locker came first and gave me the ability to go all over Tellico and Windrock way easier than no locker. When your climbing up onto rocks the front locker is a huge help over a rear locker.
     
    jpflat2a likes this.
  7. Mark Wahlster

    Mark Wahlster Member

    I currently have a Dana 44 30 spline flanged with an Eaton E-Locker in the rear and down the road hope to build a Dana 30 with the same up front. But I totally agree you have to have the option to run your front as an open in most cases.
     
  8. jpflat2a

    jpflat2a what's that noise?

    1) Open differentials teach you how to drive, to realize what you and the Jeep are capable of.
    2) Lockers/limited slips teach you to remember #1 above at all times.
     
  9. masscj2a

    masscj2a Member 2023 Sponsor

    most times I only run or need the rear locker locked to get up and over. have run opens fronts for a long time, I have 4 wheeled all my life, well at least the property licensed years anyways. I do enjoy using the front locker when I need it though and if I wheel without it locked, I have the choice to lock it if needed. its an option, but I have had a lot of times without one and still managed.
     
  10. OrangeCJ5

    OrangeCJ5 Sponsor

    I have an OX in the front and the factory limited slip in the back, if the rear had been open when I built the front axle, I would have put the OX back there. A selectable locker up front is really handy, it's nice to be able to disengage it. When I first got the Jeep, it had the open 27 front axle and it was nice to learn to drive it like that before adding in the front 44 and OX.
     
  11. Daryl

    Daryl Sponsor

    Once you have run selectable lockers on a Jeep, open axles are about the same as driving with only 3 wheels. It really depends on what terrain you actually spend your time driving though. Very hard to make blanket statements that one locker is better or worse then the next. Lockers also can be very hard on other pieces in the drivetrain.
     
  12. Chuck

    Chuck Sponsor

    If your climbing hills, and rocks the rear locker will be more useful then a front. When climbing all the weight and traction is in the rear, not so much in the front where it is light and unloaded.
     
  13. scott milliner

    scott milliner Master Fabricator

    I have a Detroit Locker (rear) and a ARB Locker in the front. I find that most of the time I run the front open. I only lock it if it's really rough terrain and need to do some crawling to get over it. Most of the time rear is enough.
     
  14. masscj2a

    masscj2a Member 2023 Sponsor

    agreed scott, most times just use it when you need it. I never just wheel with the front locked. its almost like you have to make me lock it in. there is no one right answer, its all determined by, your driving skill level, how your jeep is configured, axle ratio, tires , well you get the gist. I personally think selectable diffs are a heaven sent.
     
  15. Warloch

    Warloch Did you say Flattie??? Staff Member

    OX front and back. Run a lot open - then the rear if it starts to get bad. Front is only on those 'oh $hit' places... you know, where the wife and everyone else gets out and walks :D
     
    OrangeCJ5, wheelie and Bowbender like this.