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Old 02-22-2004, 02:41   #1 (permalink)
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diff's in a EA manual, are they different to...

hey all ...

okay, I've got myself a EA 5speed, Im going to be pulling the box out of that, and changing my ED falcon from a auto to 5speed.

Now, I've read the doc on changing it over, looks pretty good and simple, now, Im just wondering, did the auto's (eg. my ED) have different diff ratio's to a manual EA? is anyone able to tell me what the ratio's are?

also, the best to use to be quick of the mark! lol :)

thanx.
Antony.
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Old 02-22-2004, 04:36   #2 (permalink)
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Re: diff's in a EA manual, are they different to...

Most manual EAs have the 2.92. You'll most likely have a 3.08. Also, the ED has stronger 28 spline axles - I have this same (3.08) diff in my EA. Hope this helps.
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Old 02-22-2004, 14:17   #3 (permalink)
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Re: diff's in a EA manual, are they different to...

Quote:
Originally Posted by au2low
hey all ...

okay, I've got myself a EA 5speed, Im going to be pulling the box out of that, and changing my ED falcon from a auto to 5speed.

Now, I've read the doc on changing it over, looks pretty good and simple, now, Im just wondering, did the auto's (eg. my ED) have different diff ratio's to a manual EA? is anyone able to tell me what the ratio's are?

also, the best to use to be quick of the mark! lol :)

thanx.
Antony.
Youll have to fit narrow bushes to the Lower trailing arms on the diff end if you want to use the EA diff. You would also need to use the EA tailshaft.

Your best move would be to use the ED diff and tailshaft. A lot less stuffing round. Try to sorce an EB2 (with smartlock) manual ecu OR ED manual as youll experience some running problems with the Auto version.
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Old 02-23-2004, 00:33   #4 (permalink)
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Re: diff's in a EA manual, are they different to...

So I need a different ECU? I can't use the auto ECU thats already in the car?
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Old 02-23-2004, 01:06   #5 (permalink)
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Re: diff's in a EA manual, are they different to...

Nope, you'll need to change it otherwise your car will think it still has the auto.
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Old 02-23-2004, 06:13   #6 (permalink)
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Re: diff's in a EA manual, are they different to...

Maybe a silly reply, but I thought that it had a seperate computer near the brake pedal for the auto? .... can't you just remove the wire's from the auto ecu? or to much stuffing around ..?
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Old 02-24-2004, 19:49   #7 (permalink)
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Re: diff's in a EA manual, are they different to...

The ED integrated the box computer with the ECU. I suspect you already have a 3.08 diff, I certainly wouldn't want to go any lower than that :) Try looking around for a 3.23 or 3.45 XR6 diff....
You can fool the computer, I know with the EL computer you just put a 7.5 Kohm resistor on it, but I don't know the resistance values or pinouts for the ED computer.
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Old 02-24-2004, 21:43   #8 (permalink)
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Re: diff's in a EA manual, are they different to...

Quote:
Originally Posted by mongrelEB
The ED integrated the box computer with the ECU. I suspect you already have a 3.08 diff, I certainly wouldn't want to go any lower than that :) Try looking around for a 3.23 or 3.45 XR6 diff....
You can fool the computer, I know with the EL computer you just put a 7.5 Kohm resistor on it, but I don't know the resistance values or pinouts for the ED computer.
Okay cool, on the EL computer, where abouts do you put the resistor? if you could let me know what pin, or something like that ...

thanx.
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Old 02-24-2004, 22:05   #9 (permalink)
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Re: diff's in a EA manual, are they different to...

Quote:
Originally Posted by NZ
Youll have to fit narrow bushes to the Lower trailing arms on the diff end if you want to use the EA diff. You would also need to use the EA tailshaft.

Your best move would be to use the ED diff and tailshaft. A lot less stuffing round. Try to sorce an EB2 (with smartlock) manual ecu OR ED manual as youll experience some running problems with the Auto version.

Will the ED auto tailshaft bolt up to the manual EA 5speed?

Thanx.
Antony.
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Old 02-26-2004, 03:55   #10 (permalink)
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Re: diff's in a EA manual, are they different to...

they dont actually bolt up to the gearbox but yes it will fit. They have a splined shaft which allows it to move in and out of the box slightly when your diff moves.
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