will locker fit? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 10-10-2009
ClubFoot's Avatar
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will locker fit?

Powertrax 1830 Lock Right Automatic Positive Locking Differential

I'm looking at parts that peak my interest for my future build.
I have a 7.5" open rear end with 4.10s. I read up a little bit on it and watched a couple videos. I looks like an upgraded L/S. It's rather cheap and still allows for daily driving.
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Old 10-10-2009
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Looks just like an Aussie locker. I wouldn't waste your time though with the 7.5 axle...not really good for off-roading. You can get an expo 8.8 to swap in that will most likely have the traction lok in it already. Just an idea..
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Old 10-11-2009
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Well my offroading isn't all that tough. RIght now the truck does really well out where I go. Just some soft sand areas and some small hills that I really can't do. Also if it works the way they say it would be safer for rain weather. San Diego doesn't get much rain but when it does it can really pour down. I don't really see myself needing a 8.8 rear end until I plan to lift it more. Right now I just want the traction.

Well unless I could find an 8.8 with 4.10s (or higher) with L/S for cheaper then I would be on it. But I believe this would good enough for some time for me. But thanks for your thoughts :-)

Last edited by ClubFoot; 10-11-2009 at 12:02 PM.
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Old 10-11-2009
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I'd take his advice and upgrade to the 8.8 before you start throwing money at that 7.5.
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Old 10-11-2009
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Wow that is expensive for a lunchbox locker. If you had a 31 spline 8.8 you could buy an aussie in the 200's. Shop around. It is not a glorified limited slip, it is a LOCKER.
When you accelerate moderately, the torque will make the locker full on lock and not allow the left and right to turn at different speeds. As you are light on the throttle or coasting, it is like an open diff. Read up on the aussie locker on here, it is the same thing and there is a lot of information about it.
It is great for extra traction on road and off, but technically it is not safer in the rain, snow etc. Reason for this is because it will cause the truck to over-steer in slippery conditions. This isn't always bad, you just need to be prepared for it and know how to deal with it. A lot of people run these lockers on a daily driver (I use to as well) just fine.
Also, these types of lockers work much more smoothly with an automatic. With a manual, picture yourself accelerating and shifting gears through a turn, such as a long intersection. As you start accelerating, the locker is locker, and the tires scrub a little as the truck wants to go straight. As you let off to shift, the locker unlocks and it steers much faster and unloads the odd load on the suspension and drivetrain. As you begin accelerating again it locks and the truck will lean more as it is trying to go straight. This will not only make it uncomfortable for -some- people, but it will put a lot of strain on the weak 7.5" axle.
With an automatic it will just stay locked and scrub the tires a little.
$400 is a lot of money to put into a weak axle that is likely to break with a locker. You can get 8.8 axles (or an explorer 31 spline 8.8) at a junkyard for cheap, and buy a new aussie locker for cheaper for it.

Anyway, I loved having front/rear aussie lockers in my sport trac daily driver automatic, but you need to research how they work. Ask Shane how much he likes his aussie locker with his manual transmission.
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Old 10-11-2009
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Quote:
Originally Posted by brianjwilson View Post
Ask Shane how much he likes his aussie locker with his manual transmission.
LOL, i forgot to put that in my post.
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