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Old 02-04-2013, 11:49 PM   #1 (permalink)
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Default Spool or Spartan Locker in rear Differential?

Being fairly New to Zuks I will be putting a spartan Locker in the front differential but the rear one has me stumped as i will be using this also as a Daily Drive and weighing the different opinions that others have used when 75% of my time will be on paved roads. Air Lockers would be great but way out of my budget. Maybe just leave it alone and just run the Locker up front?
good or bad all opinions would help me make an educated choice.
Thanks,
Joe
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Old 02-05-2013, 07:42 PM   #2 (permalink)
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If you are using it as a daily driver do not put a mini-spool in the rear, a mini-spool is for off-road use only. A spartan locker in the rear will work good but be aware that auto lockers are noisy and you may not be able as sharp a turn as you can without one. Air lockers do not have this problem but as you said they cost a lot of money.

I would leave the front open (no locker) unless you put a air locker in it. Most of the time your front hubs are unlocked so you would have no problems but the problems you would have turning it when you have them locked in are usually not worth it.

You may just try to go without lockers for a while they are nice to have when you need them but most of the time you don't need them. Lockers get the most use when rock crawling and if you regularly get into situations when you need lockers then there is a good chance that your rig is no longer that good a daily driver any more.
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Old 02-05-2013, 10:43 PM   #3 (permalink)
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thanks for the response..... so far i'm going with nothing in the rear differential. Here's my situation..... I go Nugget Hunting in the Arizina Bradshaw mountain range and most of the time i am going down into the washes and easily all thru the hills even in two wheel drive..... 90% of the time i can get out of the washes...... That 10% i try to climb out and spin the free up in the air wheels..... at that point the front locker when i lock the hubs in should be enough to get me out of trouble and then simply unlock them for nice steering again...... I'm not a full time rock climber by any means just want a little more option if in a bad spot
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Old 02-06-2013, 06:15 AM   #4 (permalink)
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In this specific situation:

Since you are driving forward up the hill and have a front wheel in the air I would have though a rear locker would have been more sensible as you'd have most traction on at least one of the rear wheels where the two wheels up front would have poor traction.

A front locker now you can spin out a rear and loose power to the main traction wheel and up front you have a low traction wheel and a no traction wheel.
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Old 02-06-2013, 12:29 PM   #5 (permalink)
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Scudo...... keep those opinions coming as that's what i need to learn. I realize it's not that much more of a gain with a front locker but it will give me a little more than i have now. I agree a rear locker would be much better but I use this so much on paved road and tight turning situations on road that i really have to think this out..... air lockers in the rear are my best alternative but at about $1100 for the air locker and another few more for the pump (if that's really needed to change positions in the rear or does it need constant air to hold it in the closed or open position?_______) hope i explained that correctly. I may have to just go with lockers in the rear and learn how to drive with it that way until i can find enough nuggets to buy the air locker LOL
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Old 02-06-2013, 02:01 PM   #6 (permalink)
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Well with the rear locker you may reduce the amount of times you have to get out your car to lock the front hubs to get into 4X4 as you wont have one wheel spining away the power, you'd need to loose traction under both rear tires.

Though if I expect to get stuck and are driving a vehicle with manual hubs, I just lock them and leave them locked until I am out of the rough stuff and don't expect to go back in. On most part time 4x4 it is OK to drive around with locked hubs and in 2WD. As the front diff is open and the rear drive and front drive aren't connected in those conditions.
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Old 02-06-2013, 10:24 PM   #7 (permalink)
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I have one set of Spartan Lockers on order and should be in any day and i originally have planned to use them in the front differential but all day long i been kicking around putting them in the rear as it is better like you stated...... I just don't know what to expect when on dry pavement with them...... It's just around town going within a 10 mile radius. Is it doable with a Locker in the rear differential or am i asking for trouble.... I've driven semis all my life so if there's a learning curve i should be able to do it as long as it's doable.
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Old 02-07-2013, 05:49 AM   #8 (permalink)
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I have a mini spool in the rear / Spartan up front. Have been ruining it this way for 1 year. DD and frequent off road trips.
While it scrubs in tight turns (on pavement ) and is a bit vocal in parking lots, I'd never change this set up.
Off road the rig is 100% more efficient. Very little need to spool the engine to clear obstacles.
You have to decide. Is your rig an on road rig that is OK off road, or is it an off road rig that you DD . Compromises will have to be made. Boxcar
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Old 02-07-2013, 10:48 AM   #9 (permalink)
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Quote:
Originally Posted by Boxcar View Post
I
Is your rig an on road rig that is OK off road, or is it an off road rig that you DD . Compromises will have to be made. Boxcar
Great gas Saver compared to my Hemi Ram 4x4 so It's (the zuk) mostly an on road rig that i raised up with OME under axle springs and 29" tires which now gives me 15" Clearance from frame rails to ground and 9.5 inches clearance from differential to ground. It will easily go 95% of the places i want to go Prospecting in the desert..... Your right, I'm getting the picture of what each does and have to make a choice.
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Old 02-08-2013, 08:13 AM   #10 (permalink)
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Quote:
Originally Posted by Boxcar View Post
I have a mini spool in the rear / Spartan up front. Have been ruining it this way for 1 year. DD and frequent off road trips.
While it scrubs in tight turns (on pavement ) and is a bit vocal in parking lots, I'd never change this set up.
Off road the rig is 100% more efficient. Very little need to spool the engine to clear obstacles.
You have to decide. Is your rig an on road rig that is OK off road, or is it an off road rig that you DD . Compromises will have to be made. Boxcar
I went through all the options when looking at a difflock - in the end I went for a mini spool in the rear, its my daily driver too. Not had an issue in nearly a year of driving it, as Boxcar says it does get a bit vocal in parking lots and garage forecourts but other than that i have had no problems - the light back end helps. Go for the spool!
I will be fitting a spartan upfront in due coarse I have FWH upfront so wont be an issue on road.
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