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DIY Limited Slip Diff

Posted: Wed Nov 15, 2006 2:36 pm
by rogerramjet
Greetings all

I don't 4wd enough to warrant spending more money than what i bought my sierra for fitting a diff locker to it. Also I don't want to weld the rear diff because 99% of my driving is around the city.

Is it possible to put grease or blu-tac or something in the front diff to turn it into a limited slip diff? Or some sort of super oil that they use in fluid couplings? Any other options?

Thanks

Roger

Posted: Wed Nov 15, 2006 2:52 pm
by nicbeer
only 300 or so from US for a locker, or welded in the front. unlock the hubs and you wont know its there.

Bluetak is usually used for RC 4x4s and not real diffs.

Nic

Posted: Wed Nov 15, 2006 3:04 pm
by lay80n
Um................interesting idea. But no, just fork out the $400 or less for a detroit ez-locker/lock right from the states and be done with it.


Layto....

Posted: Wed Nov 15, 2006 3:15 pm
by vicelore
if u dont mind me asking whats the diference between a air locker and a auto locker ??

i know a air locker uses compressed air to move a cog which locks up the plantet gears inside the diff.

is a auto locker permantly locked ? or does it just kick in when u are losing trackion how does it work ??

probaly a stupid noob Q but i would apreciate the info .

Cheers guys.

Posted: Wed Nov 15, 2006 3:29 pm
by suzuki boy
An air locker works from an air compressor and when turned on is permanant.

A lock rite and the sort are made so when on a non slip surface(road) it is locked in untill you turn a corner then it will diss ingage and let the diff do what a normal diff will do.

I have 2 lockrites in mine and swear by them exept for slow stuff in 4wd because you can hardly steer it! :twisted:

Posted: Wed Nov 15, 2006 6:24 pm
by muppet_man67
vicelore wrote:if u don't mind me asking whats the difference between a air locker and a auto locker ??

i know a air locker uses compressed air to move a cog which locks up the plantet gears inside the diff.

is a auto locker permanently locked ? or does it just kick in when u are losing traction how does it work ??

probably a stupid noob Q but i would apreciate the info .

Cheers guys.
yea the auto locker thing is a bit deceiving. A better description of them is as an auto un-locker. When under power and driving in a straight line they will be locked. they will unlock when windup occurs within the diff during cornering. The problem with them on suzukis is that they need traction in order to create the windup in order to unlock wich means that on slippery low traction trails the will stay locked. with that in mind, a slipery low traction situation is exactly when you want it locked anyhow. PS this is all just theory, Ive never driven on or off road with one so I can't make a jugement on whether they are a good thing or not. I do think they are probably better bang for bucks then an airlocker, but If money is no object I would get the airlocker ever time.

Posted: Wed Nov 15, 2006 7:02 pm
by rogerramjet
Has anyone tried putting a corn flour / water mix in the diff? Its a dilatant mixture - gets thicker when subject to sheer. So it will grip when you get large difference in wheel speeds.

Posted: Wed Nov 15, 2006 7:19 pm
by Spike_Sierra
i think you need to listen to what your saying. water and cornflour will fcuk your diffs quicker then a working girl..

Posted: Wed Nov 15, 2006 7:39 pm
by markil
I don't think that mix would be any good for the bearings. Inivative thinking though :lol:

Posted: Wed Nov 15, 2006 8:15 pm
by muppet_man67
rogerramjet wrote:Has anyone tried putting a corn flour / water mix in the diff? Its a dilatant mixture - gets thicker when subject to sheer. So it will grip when you get large difference in wheel speeds.
problem is that the crown wheel and pinion would also be moving through it so the faster you drove the more resistance. by the time you start blowing up diffs its cheaper to weld it. by the way are you a troll?

Posted: Wed Nov 15, 2006 10:20 pm
by mr green
would that push dounuts out the diff breather? ;)

Posted: Thu Nov 16, 2006 3:41 am
by mroffroader
[quote="mr green"]would that push dounuts out the diff breather? ;)[/quote]

hahaha lol i just got my lockright installed yesterday god it gotta get used to that banging lol :lol:

Posted: Thu Nov 16, 2006 9:43 am
by rogerramjet
you can just put the cornflour in the front diff so you it only turns when you are off road which is normally not going too fast.

Posted: Thu Nov 16, 2006 9:59 am
by lay80n
WTF are you on. Gotta be a troll. I will say it now, NO FAWKING CORNFLOWER GOES IN DIFFS. Do you understand what happens when water or other contaminated gets into diffs. Why do you think we have seals and breathers, to keep oil in, and water and crap out. :roll:

Christ, someone put more chlorine in the Gene pool!!



Layto....

Posted: Thu Nov 16, 2006 10:10 am
by rogerramjet
What if you put the cornflour in the oil and don't use water?

Would it still be a dilatant mixture though?

Posted: Thu Nov 16, 2006 10:22 am
by grimbo
rogerramjet wrote:What if you put the cornflour in the oil and don't use water?

Would it still be a dilatant mixture though?
ok yes it will and you should do it. Then write a detailed report on how it goes.

Pay cheap pay twice. If you want a locker buy one do not use kitchen products to make a locker, its a half baked idea at best :D

Posted: Thu Nov 16, 2006 10:32 am
by cj
Just going to the supermarket to get some ingredients to make a batch of lockers. Anybody want some? Any preference on flavours?

Posted: Thu Nov 16, 2006 10:34 am
by grimbo
I'm on a bit of a health kick so if you could get wholemeal for me

Posted: Thu Nov 16, 2006 10:59 am
by nicbeer
Just chuck a load of bolts in there, U should at least get a limited slip sometimes before it locks up and dies.

nic

Posted: Thu Nov 16, 2006 11:17 am
by Fourdogs
Could build something like this

http://www.teamswift.net/~madzuki/phantom.html

Posted: Thu Nov 16, 2006 12:06 pm
by Doggy
Oh layto, I cant thank you enough for telling TOTT about this......this is gold :rofl:. You go and put cornflour in your diff, personnally I like to use wholegrain breadmix because I find its healthier for my diff and it makes it stronger :D

Posted: Thu Nov 16, 2006 12:11 pm
by Roctoy
rogerramjet wrote:you can just put the cornflour in the front diff so you it only turns when you are off road which is normally not going too fast.
you should use self raisng four so it thickens when the diff gets hot, but it'll only last one outing then you'd have to change it.

you could try that expanding foam as well, i've heard they have had sucessful results with it in Uzbekistaan.

Posted: Thu Nov 16, 2006 12:22 pm
by =SKB=
I can't believe this thread got this long lol.

rogerramjet, I say go for it! Post up a tech guide and results on how you go.

I personally would use choc chip cookie dough. So when your 10 metres from your house with a seized diff and looking stupid at least you'll have cookies.

:D

Posted: Thu Nov 16, 2006 12:27 pm
by cj
For those who aren't quite so health concious, you could always go with the Krispy Kremes (I knew there had to be something good to do with them). The custard filled ones should act like an lsd.

Posted: Thu Nov 16, 2006 1:15 pm
by Hekta
Awesome :armsup:

Please do it and write a tech article for us :D

Roger Ramjet he's our man
Hero of our nation
For his adventure just be sure
And stay tuned to this station.

Posted: Thu Nov 16, 2006 3:16 pm
by just cruizin'
And if you put beer in your transfer case you reduce your gearing by 50%. A large meatlovers pan pizza with BBq sauce is a great air filter.

Posted: Thu Nov 16, 2006 3:27 pm
by dreamz
:rofl: :rofl: :rofl:

Posted: Thu Nov 16, 2006 5:54 pm
by just cruizin'
ZookStock wrote:I heard from a local bush mechanic that if you use the beard hair off a syberian marsh goat, you get a great diff lock effect... the genetics off this particular goat, tend to make the reaction between the hair and the diff oil something similar to that of locktite.....

Image
are these the same goats the urinate on their beard to attract females. If so is it a chemical reaction the causes the diff to lock

Posted: Thu Nov 16, 2006 6:19 pm
by =SKB=
So pissing in the diff's is better then any locker :armsup:

Posted: Thu Nov 16, 2006 6:54 pm
by bazooked
4 packets of cup a soup should work as well, that thickens up my stew when it get s warm , so it should work in ur diff aswell.also if ur goin to use corn flour use the nurses brand its the bomb...................................................










































































































































































man ur such a tool!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!