LSD Bj74

[Gold Boy]

My limited slip deferential seems to work very well indeed. Was in some deep snow the other day and the LSD locked up very well, but my front deferential did not.

So what would you more knowledgeable folk recommend for the front diff?

I was thinking of a Detroit locker which seems to be simple and does not have to have air.... or a cable locker.



GB

 

[TwoThirtyDirty]

My understanding is that a detroit locks up under power basically turning it into a spool. Only freewheels one wheel while coasting. Probably not great up front. $.02

 

[light_duty]

I've read a number of threads about the Aussie locker on snow, and inlcuded in these was some discussion about using Aussie or Detroit lockers on the front. A search for "Aussie locker" and "snow" will find you some stuff.

Robin

 

[crushers]

my recommendation:
do not lock the front end, you will eat birfields, ou will loose steering response and is dangerous if driving at highway speeds in 4H...
just my opinion, others will vary.

 

[Stone]

Wasn't there discussion of throwing the LSD in the front diff and putting a real locker in the rear before?

 

[denis]

that's what I'd do, LSD front ARB rear

 

[BJBully]

I have lock-rite in the front of mine but I wouldn't recommend it in snow. It's pretty bad in mud, it requires a bit of planning while driving because if it becomes a handfull it can't be 'switched off' (unless you want to take it out of 4WD). It is good on the rocks though and it was cheap and easy to fit.

 

[crushers]

on the pre 1990 units i have run many a LSD in the front diff and it is much more forgiving and the driving manors are much more pleasent.
shim the clutch plates and the traction will go up, but will still slip before snapping a birfield.
you can run a Aussi locker, lock rite, richmond locker, or anything else in the rear.

 

[Gold Boy]

Wasn't there discussion of throwing the LSD in the front diff and putting a real locker in the rear before?

Sorry Stone.. I did do a search but with out much success https://forum.ih8mud.com/search.php?searchid=793543


GB

 

[Gold Boy]

on the pre 1990 units i have run many a LSD in the front diff and it is much more forgiving and the driving manors are much more pleasent.
shim the clutch plates and the traction will go up, but will still slip before snapping a birfield.
you can run a Aussi locker, lock rite, richmond locker, or anything else in the rear.

So Wayne, you are saying there is a LSD in my front diff.... The way it performed I assumed that there was not....... But if there is its good news for me as I these pre 90's 74's LSD's kick butt...

A shimming we will go!


GB

 

[crushers]

no, if you have LSD in the rear then the front is open (unless equiped after purchase)
you move the LSD from the back to the front and shim it...
cheers

 

[Gold Boy]

no, if you have LSD in the rear then the front is open (unless equiped after purchase)
you move the LSD from the back to the front and shim it...
cheers

Thanks

Or I could buy a LSD for the front diff and have two LSD's...

But your plan sounds better

GB

 

[Stone]

Sorry Stone.. I did do a search but with out much success https://forum.ih8mud.com/search.php?searchid=793543


GB

That's not what I was trying to get at, GB...just trying to remember who it was that did that, and I guess it was Wayne.

 

[Greg_B]

Sure...switch the LSD to the front, take your lower use diff from the front, plunk it in the back and throw in an Ozzy locker if you want to go cheap locker.

I've got Ozzies front and rear in Poo. Too bad the engine broke last year. With the 13BT going into it shortly, this year it will get more use and I will have more feedback to offer. I've though if the front getting pushed around by the locker in snow or mud was an issue then one could run with one side unlocked in those situations, freeing up one wheel to steer, maintaining front end position. Smurfields are a cheap upgrade to the birfs. GB, I have the advantage of having a mechanical t-case (vs vacuum) in which I notched out the space in the shifter braket for 2L. I was not in 4WDL many times are all last year...using 2WDL with the locker in back to get me through most things. As soon as I was through a tougher spot it was back to 2L. You would have to find some way to over-ride the switch that activates 4wd when going into low range on your vacuum equpped t-case.

hth's

gb

 

[denis]

You would have to find some way to over-ride the switch that activates 4wd when going into low range on your vacuum equpped t-case.

Unplug the "low" signal connector from the tcase. (the switch is inline with the shifter fork shaft). Override done

 

[Greg_B]

Unplug the "low" signal connector from the tcase. (the switch is inline with the shifter fork shaft). Override done

Cool...I was thinking tapping in with a switch, so you could leave it on auto when you want. There was a few times last year where I "forgot" to put it in 4WDL and when through a spot went to put it in 2WDL and then realized...opps. Got through some areas I would not not thought possible...but a locked ass sure helps!

gb

 

[BJBully]

Greg, how do you find it corners with the lock-rite in the rear? I have heard some people say they ratchet quite a bit on the road, others say they 'push' too much into a corner. Thinking about getting one for the rear of mine to match the front.

 

[Greg_B]

You can feel it push. I can get it to bang once in a while and twist the back end if I am not going through a corner with the correct load on it. I think it is a tad loose, so am going to pop the cover and check the lash when it is back on the road. Correct setup is critical to function if I have all this right. I did not have any shims when I installed it, and though it was in spec it was on the looser side. I am going to put it on the other side of the spec and see the difference. Tight turns in parking lots require the clutch in, and coast into your spot.

Overall I was suprised how easy it was to adjust to. I know some who have installed the ozzies and swear they do not notice them at all.

hth's

gb

 

[Gold Boy]

Thanks gb
My LSD locks up both the wheels so both are giving me traction. Is there much more of an advantage with a full locker?

What do you think of 2 LSD's, is that a good combo?

Yes I have had mixed reports about ozzy lockers, some say they do not notice them on corners.

Thanks

GB

 

[Stone]

Gold Boy:

I think the key to the phrase is "limited slip"...and that's why Wayne has recommended shimming them so that they lock up tighter. There are situations where a true locker in the rear would be invaluable. The Aussie Locker is a relatively inexpensive and seemingly proven locker readily available in the market.