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 Post subject: ea lsd
Posted: Sat Jan 05, 2008 5:39 pm 
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Hey guys, just wondering whether a ea xr6? lsd diff will be compatible with a ef/el sedan?

thanks
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Posted: Sat Jan 05, 2008 5:49 pm 
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Hey jjohnno

There was no EA XR6. Most LSD diffs from EAs were out of Fairmonts and possibly Spacs.

Differences are:

Different Pinion connection requires tailshaft from EA

The mounts for the trailing arms are also different I believe and are a different size.

The ratio is probably undersireable, they are often 2.77 and use a 25? spline axle and centre.

I think that is it.

In otherwords, it is not a bolt in swap at all.

BenJ

 

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Posted: Sat Jan 05, 2008 5:59 pm 
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thanks for that, yeh i think it was from a monty..

may aswell look for a ef/ef xr6 lsd from the sounds of things
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Posted: Sat Jan 05, 2008 6:14 pm 
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lsd was standard on the ghia, but was only a factory option with the gl, s-pac and fairmont ea.

 

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Posted: Sat Jan 05, 2008 6:23 pm 
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it was a 2.75 or something wasn't it

 

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Posted: Sat Jan 05, 2008 6:37 pm 
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Also EA's were two pinion where the EF/L's were 4 pinion.

 

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Posted: Tue Jan 08, 2008 11:28 pm 
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most ea lsd's are 3.23

 

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Posted: Wed Jan 09, 2008 9:32 am 
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my ea s pack 5 speed came with 2.92 lsd std.
but yea 25 spline 2 pinion centre..

the 1st ea 3 speed auto came out with 2.77
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Posted: Wed Jan 09, 2008 10:34 am 
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the 3.23 must be a ghia thing,,cause all ghia's ive seen had 3.23 lsd's

 

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Posted: Wed Jan 09, 2008 8:59 pm 
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naughtyfalcon wrote:
the 3.23 must be a ghia thing,,cause all ghia's ive seen had 3.23 lsd's


I have an 88 NA Fairlane diff, its 2.77 LSD. All the early EA, NA, DA's had only 2 ratios to pick from, 3sp Auto had 2.77, and 5sp manuals had 2.92.
The second series EA's ( 4sp auto ) had usually 3.08's fitted ( sedans).

 

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Posted: Wed Jan 09, 2008 9:35 pm 
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+ 1 for 2.92:1 LSD

Actually rang round today to get some quotes on changing it.

 

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Posted: Thu Jan 10, 2008 12:00 am 
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locknut wrote:
+ 1 for 2.92:1 LSD

Actually rang round today to get some quotes on changing it.


I changed mine too. I used an EBII housing, 3.27 gears ( the EB's) and put my LSD centre ( 25 spline 2 pinion ) and axles in.
Works good with the 5sp. Car was original 4/88 S pack sedan in Stark white with brown interior ( yuck), with MPFI 3.9, 5sp, and 2.92 LSD, as ordered from the dealer in Gladstone, Qld. I'm the 3rd owner and it had 128k on it when I got it in 2000.
I also have a 5/91 EA S pack 30th anniversary sedan in Platinum silver, 3.9 MPFI 4sp auto. haven't looked at the diff to see what it is yet.

I made some alloy spacers for the lower trailing arms on the 88 to fit the EB housing. Reason for the EBII housing is, I don't have to dismantle the Watts link and pull the back cover off the change the diff oil.
Also, I'm using the EBII flange and tailshaft.

 

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Posted: Thu Jan 10, 2008 12:27 am 
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2.92 is sh!t with a manual lol, 70km/h out of first gear :P

 

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Posted: Thu Jan 10, 2008 8:08 pm 
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alfy wrote:
2.92 is sh!t with a manual lol, 70km/h out of first gear :P


In my ol Val, I could do 100kmh in 1st, with a 2.92 diff. I had the E49 single rail box. With the 3.23's, it came back to 80 kmh. It was fun to have it in 1st at 60kmh, then floor it to disappear in an accel test with mates.

 

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