2008 Silverado LS want a locking differential

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by getrichschemer, Apr 7, 2013.

  1. getrichschemer

    getrichschemer New Member

    I fish, hunt etc. My truck will be paid for in 12 months, and don't want to get back under a note. Im always in soft terrain and constantly stress about getting stuck. I wish I would have bought a z71, but I didnt. Im considering compensating with a locking differential and All terrain tires.

    Whats the recommended method and hardware?
  2. MrShorty

    MrShorty Epic Member 5+ Years 1000 Posts

    I don't know that there is a single recommended method or hardware to add a locker after the fact.

    Cheapest, especially if you can sell your current axle for about the same as a junkyard axle, is to buy an axle with the matching gear ratio and a locker (almost certainly a factory Eaton Gov-lock G80). The main limitation here is that you will almost certainly end up with the G80, which is not everyone's favorite (especially in the 10 bolt version).

    Cheapest aftermarket option is to put in a lunchbox locker (Powertrax lockright or Detroit EZ locker or similar). These replace the "spider" gears in your open diff with a locking mechanism. They are much cheaper than full carrier lockers, and are cheaper/easier to install (using the existing carrier, one does not need to go to the effort of setting up the gears and rebuilding the differential).
  3. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor

    Im gonna recommend a little different traction method here.
    Have you ever thought of getting a winch? I think it would be more useful for what your doing.
    Not only can you get the truck unstuck but you also have a nice way to lift your game and hang it for dressing.
    The z71 package wouldnt have really helped a lot in this case I dont think. one issue Ive allways had with the g80 is it doesnt liked to stay locked and reverts back to an open axle quickly. Which is why I always use and recommend selectable lockers if your gonna add one. Yea more expensive but with the offtiad experiences ive had I believe worth the expense.
    Tire are an important part of the traction equation. But allterains arent all ways necessary. Next time you hit the trail try lowering your tire pressure to 20psi and see if that doesnt give you a fatter foot print with better traction.
    Dont forget to bring along a portable compressor to air back up or make sure you know where the closest air source is.
  4. j cat

    j cat Epic Member 5+ Years 1000 Posts

    having a 4wd SILVERADO I found that with just the locking rear diff , the increased traction is not all that much of a help if you should get stuck. the locking diff does however keep the vehicle better under control when traction is lost /////being stuck is another issue.

    If you keep the truck I also agree that you should get a high powered winch.

    the other solution would be get a 4wd vehicle .
  5. SurrealOne

    SurrealOne Former Member ROTM Winner 1000 Posts

    I'm with [MENTION=14295]tbplus10[/MENTION] on this. A lift, appropriate tires, and a locking diff all help keep you from getting stuck. But once you're actually stuck ... a winch is king. And a winch does, indeed, have plenty of other uses.
  6. steved

    steved Former Member

    My only heartburn with this idea is that you can potentially get an axle with a G80 that is completely worn out and is no better than an open differential...its a pretty big chance to take spending the $$ they ask for complete axles...
  7. ahmitchell1

    ahmitchell1 Rockstar 4 Years ROTM Winner 1000 Posts

    One reason I had to get a winch on my silverado. I used the one on my dodge the most for lifting up deer and dressing them
  8. getrichschemer

    getrichschemer New Member

    Im looking at this locker.

    As fas as getting stuck, I got stuck in my friends yard. I just drove up and felt a little slosh. I didn't want to rut up his yard so I tried to slow pace it out, but it start slipping. I ended up with nice size rut on one tire. Had both tires been spinning, I would have crawled out. Not to mention on the boat ramp too!
  9. MrShorty

    MrShorty Epic Member 5+ Years 1000 Posts

    I have heard good things about the Detroit Truetrac, though I have no personaly experience. Technically, I would not call it a locker -- it is a gear type limited slip. A lot of people prefer the Truetrac over conventional "clutch type" limited slips because there are no clutches to wear out, so it should last a long time.

    Because it is a full carrier replacement unit, be prepared to pay for (or learn how to DIY, if you don't already) a full diff rebuild, including setting up the ring & pinion. If you have 2wd and have considered changing the gear ratio, now would be a good time to make that adjustment, as you will be setting up the R&P anyway. If you have 4wd and want to add the expense of regearing the front, it might also be a good time to consider regearing even if you have 4wd.
  10. getrichschemer

    getrichschemer New Member

    I'll call around and see what it cost.

    - - - Updated - - -

    Just called local 4x4 custom shop. They said a detroit locker $799 and 300 for oil and labor.

    I'll buy the locker myself and save. How do I know which one to get?

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