Diff gears on ED

kyro_02 · 06-06-2006, 05:52 PM

Hey....

what diff is in a ED 94' fairmont ... standard..single spinner of course. some people saying 25, others say 28 spline ?

someone set it straight !

BI6TIM · 06-06-2006, 05:59 PM

If it's the factory fittment it will be 28spline! 28 spline diffs started in the EBI or EAII or something. It should have a 3.27 ratio aswell, just in case you were wondering that.

adxr8 · 06-06-2006, 06:00 PM

Not sure about EA but EB onwards are 28 spline

kyro_02 · 06-06-2006, 06:01 PM

are you serious? i wasn't sure on spline but thought ratio would only be 2.77's ? :O

adxr8 · 06-06-2006, 06:07 PM

2.77s stopped in the EA i think

BI6TIM · 06-06-2006, 06:10 PM

Yeah 2.77's stopped with the demise of the 3 speed auto.

Rollin · 06-06-2006, 06:26 PM

EB are 3.27, ED auto are all 3.08, manuals are 3.27, all 28 spline...

ditch the gears, get 3.9s and a lockrite center

kyro_02 · 06-06-2006, 06:29 PM

Quote:

Originally Posted by Rollin

ditch the gears, get 3.9s and a lockrite center

lol thats the main reason i started this thread so i know what type of locker i will need :P

im after a full spool (yes yes, no one needs to tell me how stupid that is because its hard to drive... and tyres get ruined and it puts strain on everything and its dangerous etcetc... ofcourse thats only if you are "stupid" to drive it on the road etc but look at it as a 'i will learn my lesson senario..' lol

i would get a detroit locker.. but it doesn't make the rachett sound lol

EDXR6T · 06-06-2006, 06:45 PM

im geting an EDXR6 diff with 3.45's

getting it reco'd next month too and having the break of pressure raised higher then the average 30lb to about 70-90

so no single spinning LSD YAY!

but right now it's got 3.27's single spinner :P us EDghia boy's got jiped an LSD:'(

kyro_02 · 06-06-2006, 06:50 PM

Quote:

Originally Posted by EDXR6T

so no single spinning LSD YAY!

get them to make it really tight

Quote:

us EDghia boy's got jiped an LSD:'(

so true :P

..
rolling says we only have 3.08's? unless you have a manual then yours is 3.27 yeah?

EDXR6T · 06-06-2006, 06:55 PM

^^

well i got 3.27's and the tag say's it's LSD but jack the wheel's of the ground and the wheel's dont spin the same direction

somthing tell's me that the diff's been screwed with:P

BI6TIM · 06-06-2006, 06:56 PM

The LSD I just put in my ED ( the third one ) has a preload of 115lb. It's still not good enough, Lockrite hear I come!!!

Also kyro 02, you may ask, if I want a diff that's better than LSD, why not mini spool?
Been there, done that. No Good! I strongly advise, go the Lockrite as aposed to the spool.

kyro_02 · 06-06-2006, 07:02 PM

Quote:

Originally Posted by BI6TIM

No Good! I strongly advise, go the Lockrite as aposed to the spool.

soz i'm new to this locker stuff and i've just come to know detroit locker doesn't lock when cornering but with a full spool it will rachett... what's the difference between the mini-spool and a full-spool?

with lockrite does it unlock when cornering so that rachett noise won't be there and you won't flick the back around in the wet?

what problem did you have with a mini-spool, did you bust something and/or your tyres kept getting ruined?

Walkinshaw · 06-06-2006, 07:15 PM

Quote:

Originally Posted by kyro_02

soz i'm new to this locker stuff and i've just come to know detroit locker doesn't lock when cornering but with a full spool it will rachett... what's the difference between the mini-spool and a full-spool?

with lockrite does it unlock when cornering so that rachett noise won't be there and you won't flick the back around in the wet?

what problem did you have with a mini-spool, did you bust something and/or your tyres kept getting ruined?

Minispool = replaces the spider gears with a solid piece of steel
Full Spool = replaces the whole hemisphere witha solid steel hat that the crownwheel bolts to

kyro_02 · 06-06-2006, 07:00 PM

yeah im gonna look at my diff in a min and see what it says... its definately a single spinner, always spins the right wheel in dry but will change from the right to the left rear spin... and i sometimes get the slightest of whins sounds at about 60-80km/h... but i'm thinking it's the tyres.. so i will get the diff inspected and may as well throw a locker in at the same time :P

Walkinshaw · 06-06-2006, 07:10 PM

Rollin, what did your lockrite centre cost? Here they seem to be arround the $590 mark. Easy as to install as well.

kyro_02 · 06-06-2006, 07:21 PM

so this is a full spool yeah? and thats it nothing else needed? to me i doubt thats all i need, there is a catch eh?

and this is a mini spool yeah?

this is all from ebay so they can say anything lol

edit:

I have tried to look under the car but the lowest point in the car happens to be half the size of a coke can... so i had problems getting under.... i need ramps lol

Walkinshaw · 06-06-2006, 07:35 PM

100% correct

kyro_02 · 06-06-2006, 07:36 PM

cheers

BI6TIM · 06-06-2006, 07:47 PM

^^
You've got that right.
Spools will eventually ruin everything else in your drive line. They are completely unforgiving and because trailing arms are so far out towards the wheel on falcons it has no give at all. Commodores are much easier to live with a spool in, the upper arms are in towards the centre of the diff allowing the diff to move around a bit more.

In a falcon the spool will just take control of the back of the car when trying to go around corners, then as soon as one wheel lets go both wheels spin and the car snaps out violently ( nothing like LSD ) and if your not ready for it you could be in some serious trouble.

Don't get me wrong, I love spools, there is nothing more absolute. They are great at events such as Powercruise (I have a spare diff with a spool in it for powercruise) but they are no good on the street. Not to mention Ilegal!

XRated · 06-06-2006, 07:53 PM

Can someone give a run-down on the different types of Lockers? I was considering a Detroit or a Richmond (?) Locker.

kyro_02 · 06-06-2006, 08:02 PM

these all the only ones i've heard:

Detroit Locker
Full-Spool
Mini-Spool

BI6TIM · 06-06-2006, 08:09 PM

I will post a couple of photo's of the inside of a Detriot tommorow. I don't know about the Richmond but the Detroit is awesome, best of both worlds. Unfortunately Detroits will set you back about $2000.

Lockrite is a simpler version of the Detroit. They are noisy though, but for roughly just over a quarter of the price of a Detroit they are a good choice. They just replace the planetary gears in an open centre, whereas the Detroit replaces the whole centre.

There is also a Kaz LSD, which is technicaly not a locker but they are near enough. They are the most talented LSD on the market and diff builders say they will spin two wheels all day every day for 200 000 km's. That's a big call but for roughly $1800 (purchase price only) for the borg warner they would want to live up to that claim.

That's all I know about, hope that helps someone.

kyro_02 · 07-06-2006, 09:38 PM

any pics BI6TIM ?

BI6TIM · 08-06-2006, 08:23 AM

Sorry man been working till 8 or 9 the last few days. Try and get them today.

kyro_02 · 08-06-2006, 08:39 AM

yeah all sweet

Walkinshaw · 08-06-2006, 09:38 AM

http://www.4wdsystems.com.au/html/lokka.htm

Thats the lokka there

BI6TIM · 08-06-2006, 12:09 PM

That is almost identical to the Detroit. That picture shows how it all works anyway.

Obviously when the teeth lock in together the diff is locked, but they also have the capability, by way of springs inside there, to unlock allowing safe and legal cornering.
Thanks Walkinshaw.

Rollin · 08-06-2006, 05:54 PM

The 'lokka' on that website is nearly identical to the lock-rite I have in my car - it could even be the same thing - the picture at the top of the page could be for a landcruiser, and the design for BW diffs is the same as mine.

The two 'center' pieces in the pic are the same as mine, but my center uses the factory axle gears instead of the special sides shown.

In a manual it requires a bit of extra effort for smooth progress, you have to dip the clutch and slip it back out when going round second gear corners for example, or it pig-roots pretty bad. In an auto I think it would be sweet, as the auto would keep a little preload on it and provide a smoother link to the engine.

They are awesome but - you can turn the car around in its own length if you want to

and you know its NEVER going to kick one wheel - very predictable, very easy to slide, and it takes a damn sight longer to kill than a GHEY BW lsd!!!

(if i seem a bit anti-BW lsd its because I spent a disgusting amount of money getting my LSD rebuilt and tightened and made all sexy, and it lasted one track day at morgan park and another at QLD raceway, then it was cactus, i was SO upset!!!)

Walkinshaw - thats a much better price than I have been quoted - My lockrite was already fitted to a 3.7 EA diff, so I got it second hand. I have been told $700 for a lockrite is about normal, I think if i break it I will be calling you for contact details on the $590 one!!!