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limited slip up front?

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Old Sep 16, 2009 | 08:54 PM
  #1  
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limited slip up front?

hey guys,
i am looking to get rid of the open diff up front but cant seem to find an e-locker for the 7.5inch ifs diff i have up front, i was wondering if a limited slip would work just as well? this is a daily driver and doesnt go offroad often but when it does i love to just completely destroy those big fords and stuff. n e way how good does limited slip work? or should i just wait and keep looking for an e-locker?
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Old Sep 16, 2009 | 08:57 PM
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You won't find an elocker, since they aren't made for the 7.5" diff.

No, a limited slip isn't as good as a locker. I disliked mine a lot, but many, including 4crawler on here, have had good success. Since this is a truck that doesn't go offroad often, I'd think you'd be fine with the LSD, after some practice with the various techniques for driving with it.

Just don't expect it to work like a locker.
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Old Sep 16, 2009 | 09:52 PM
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Do they make an ARB for the 7.5? That would be a great investment and help make yours the beast to keep up with.
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Old Sep 17, 2009 | 05:39 AM
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Yes they do. Had one for a number of years now.
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Old Sep 17, 2009 | 06:22 AM
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You can put an LSD out of a Supra (unsure what year) in the 7.5 IFS front on your rig. 4crawler has a write up on his site on how to do it. I think it'd be a damn good little combination to have an e-locker in the rear and an LSD in the front.
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Old Sep 17, 2009 | 06:36 AM
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One thing that really gets you with traction on the ifs is raising a tire off of the ground. With a Limited Slip, once that tire is off of the ground, kiss any traction upfront good bye.

With a locker you won't have to worry about it.

I have an arb up front right now, but switching to aussie soon.
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Old Sep 17, 2009 | 07:37 AM
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Originally Posted by crolison
I have an arb up front right now, but switching to aussie soon.
Why? The arb is a much stronger carrier, and selectable.
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Old Sep 17, 2009 | 09:04 AM
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If you go lsd, I'd go with a Detroit Truetrac. It's gear driven and even with a tire up it'll still work.
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Old Sep 17, 2009 | 10:41 AM
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Originally Posted by BigBluePile
If you go lsd, I'd go with a Detroit Truetrac. It's gear driven and even with a tire up it'll still work.
It sort of still works. LSD up front is nice because a little tap on the brake pedal will fool the LSD and it will lock up both sides. Doesn't work as well when it's in the rear because of brake biasing, I guess.

I can think of numerous instances where I've been climbing a slippery, off-camber hill and when the truck begins to lose a little momentum applying the brake pedal allows it to hook back up.
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Old Sep 17, 2009 | 10:49 AM
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x2 on the truetrac. that's what I'm planning on running up front since my 4runner is my daily driver. I plan on keeping my IFS, so I'm going to be getting my 7.5 set up with a truetrac and 4.88s, and my rear with the toyota factory e-locker in a trail-gear rock stomper rear housing. An ARB air locker would be the absolute best for the front, but its a huge investment for a sometimes-wheeled-machine. That's my logic at least. Then again, I predict my truck will see more air than rocks, so I will be building accordingly.
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Old Sep 17, 2009 | 11:22 AM
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Originally Posted by AxleIke
Why? The arb is a much stronger carrier, and selectable.
because i'm getting it
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Old Sep 17, 2009 | 11:48 AM
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ARB locker in the front with IFS = bad idea.

Thats crazy..hope you have some wicked CV's to take the abuse. If your gonna spend $1200 and get serious with a locker, just get a SFA to go with it.
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Old Sep 17, 2009 | 12:17 PM
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Originally Posted by sexonwheels
ARB locker in the front with IFS = bad idea.

Thats crazy..hope you have some wicked CV's to take the abuse. If your gonna spend $1200 and get serious with a locker, just get a SFA to go with it.

how many ARB front IFS lockers have you ran in your IFS? or any lockers at all?

Last edited by 88Cleve4runner; Sep 17, 2009 at 12:24 PM.
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Old Sep 17, 2009 | 12:48 PM
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I'm thinking the LSD in the front would be a good idea. Better traction than an open and it would allow for steering. I believe it would be a better investment than a full locker.

As for 88 he has the right idea...go ARB that way you have the best of both worlds. Lock when you need it and unlock to turn.

Come spring I hope to get a lock-rite for the rear on the Runner.

Last edited by Lumpy; Sep 17, 2009 at 12:49 PM. Reason: locker
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Old Sep 17, 2009 | 01:45 PM
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Originally Posted by 88Cleve4runner
how many ARB front IFS lockers have you ran in your IFS? or any lockers at all?
Seriously! I run with 3 guys (AxleIke and ~TC~) all have ARB's and IFS. It all comes down to driver skill. And the few times they have broken a CV it was driver error - and they'll admit that! Also another bonus with an ARB is that you have a strong compressor that you can use to air up at the end of the day if you don't have CO2.

I have a TruTrac in Tippy and boy what a PITA it is. I had to use the brake technique all the time since I was always lifting a front tire. FWIW - using the brake technique gives you 3/5ths of the "power" of a selectable locker but it is hard to master the finesse of the brake trick.

Last edited by Lysmachia; Sep 17, 2009 at 01:47 PM.
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Old Sep 17, 2009 | 02:29 PM
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Originally Posted by sexonwheels
ARB locker in the front with IFS = bad idea.

Thats crazy..hope you have some wicked CV's to take the abuse. If your gonna spend $1200 and get serious with a locker, just get a SFA to go with it.
LOL! Stock toyota CVs are just fine. The only break I've ever had with mine was due to a torn boot and a dry joint. Replaced with a used stock toyota CV, and it's been just fine ever since. And that is with an ARB in the rear, front, plus dual transfercases, with a 2.3-4.7 setup, and 4.88 gears in the diffs.

Only think i've legitimately puked has been the steering.

Handled this just fine:













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Old Sep 17, 2009 | 02:42 PM
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i never said because you have ARB that you,ll never break a cv. all i was asking was the experience woth them. the arb can unlock and lock. it came across to me that they were saying because of the ARB, you would break more cv's. not true. the broken cv's i've seen have also been by driver error. if i mess one up chances aee it'll be my fault. but to say because of the arb i woll break a lot of cvs just doesnt make sense.
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Old Sep 17, 2009 | 02:53 PM
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From: cleveland tn
ike's runner just plain dominates... just had to put that out there too. i'm not trying to bash you Sex, just correct you lol. now back on topic!!!
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Old Sep 17, 2009 | 03:59 PM
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If you drive only on roads or 'wheel easy stuff where you aren't likely to unload or lift a tire, a LSD works fine. Unfortunately, the rest of the time, you get all the drawbacks of a locker (lack of stability on slick offcamber, etc) without many of the benefits (traction when you really need it)

I have cursed at Molly's Trutrac more than any other thing on the trail ever!
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Old Sep 17, 2009 | 04:20 PM
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Originally Posted by tc
I have cursed at Molly's Trutrac more than any other thing on the trail ever!
I dunno.... Cuz I remember you yelling this on Steel bender

Originally Posted by ike
And i though ron (~TC's~ rig) was breaking for sure with the driving display Troy gave us after yelling something like if you want to be an open open bitch than i am going to drive you like an open open bitch
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