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 Post subject: Diff Questions
Posted: Mon Aug 09, 2010 2:13 pm 
Getting Side Ways
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hi

just asking a few things

1. will a eb/edv8 diff fit a eb/ed 6 cyl

2. will a eb/ed xr6 diff fit a eb/ed 6 cyl

3. if you fit a eb/ed v8 or a xr6 diff to a eb/ed 6 cyl do you have to change the speedo sender or will the speedo be out and does it make the car use more fuel than with the original diff

4. if you fit a eb/ed LSD diff to a eb/ed 6 cyl Non LSD do you have to change the speedo sender or will the speedo be out and does it make the car use more fuel than with the original diff

5. what do you have to replace or do to fit a eb/ed xr6 or v8 diff to a eb/ed 6 cyl and how long does it take to fit a eb/ed xr6 or v8 diff to a eb/ed 6 cyl

6. what do you have to replace or do to fit a eb/ed LSD diff to a eb/ed 6 cyl and how long does it take to fit a eb/ed LSD diff to a eb/ed 6 cyl

7. does fitting a diff with diffrent ratios make the car use more fuel and affect the speedo and will the speedo be out
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 Post subject: Re: Diff Questions
Posted: Mon Aug 09, 2010 2:26 pm 
Getting Side Ways
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Since you asked all of these Q's ^^^^^.....for you it would take a week...for someone who knows, a couple of hours. Happy motoring :D

 

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 Post subject: Re: Diff Questions
Posted: Mon Aug 09, 2010 6:18 pm 
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fairmont1 wrote:
hi

just asking a few things

1. will a eb/edv8 diff fit a eb/ed 6 cyl

Yes, it will aslong as its EB2 onwards

2. will a eb/ed xr6 diff fit a eb/ed 6 cyl

Yes, again, EB2 onwards

3. if you fit a eb/ed v8 or a xr6 diff to a eb/ed 6 cyl do you have to change the speedo sender or will the speedo be out and does it make the car use more fuel than with the original diff

It depends on if the ratio is the same or not the V8's had 3.23 XR6 had 3.45

4. if you fit a eb/ed LSD diff to a eb/ed 6 cyl Non LSD do you have to change the speedo sender or will the speedo be out and does it make the car use more fuel than with the original diff

No, not if its the same ratio, if its a different ratio, then yes, you need to change the speedo gear

5. what do you have to replace or do to fit a eb/ed xr6 or v8 diff to a eb/ed 6 cyl and how long does it take to fit a eb/ed xr6 or v8 diff to a eb/ed 6 cyl

Its not hard at all, time wise? depending on how good you are at car work, and have the right tools i.e. rattle gun

6. what do you have to replace or do to fit a eb/ed LSD diff to a eb/ed 6 cyl and how long does it take to fit a eb/ed LSD diff to a eb/ed 6 cyl

Same as above

7. does fitting a diff with diffrent ratios make the car use more fuel and affect the speedo and will the speedo be out


Speedo will be out if you change ratio, i.e. if you put a EB2/ED XR6 3.45 in you will need to change the speedo sender gear to the black one, as for more fuel? depends on how you drive it.

I hope this helps!

Laticia.

 

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 Post subject: Re: Diff Questions
Posted: Mon Aug 09, 2010 6:53 pm 
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:shock: holy s**t I'm confused...

as Laticia said...

All diffs from EBII to AUI are the same physically... only the ratio changes in them...

a low number (3.08, 3.23) will give you more speed at the wheels for "x" amount of tailshaft revolutions,
a high number (3.89, 4.11) will give you more power at the wheels, but consequently less speed at the wheels for the same number of tailshaft revs...

so with a high ratio diff you need more tailshaft revs to get the same wheel revs so you will use slightly more fuel to be doing the same speed but will give better off the line launches...

Any ratio change with effect the speedo...

An LSD has no bearing on the diff physically or its a ratio... only effects how "differential" the individual wheel speeds can be...

CHeers,
Tim

 

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 Post subject: Re: Diff Questions
Posted: Mon Aug 09, 2010 7:49 pm 
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fairmont1 wrote:
hi

just asking a few things

1. will a eb/edv8 diff fit a eb/ed 6 cyl

2. will a eb/ed xr6 diff fit a eb/ed 6 cyl

3. if you fit a eb/ed v8 or a xr6 diff to a eb/ed 6 cyl do you have to change the speedo sender or will the speedo be out and does it make the car use more fuel than with the original diff

4. if you fit a eb/ed LSD diff to a eb/ed 6 cyl Non LSD do you have to change the speedo sender or will the speedo be out and does it make the car use more fuel than with the original diff

5. what do you have to replace or do to fit a eb/ed xr6 or v8 diff to a eb/ed 6 cyl and how long does it take to fit a eb/ed xr6 or v8 diff to a eb/ed 6 cyl

6. what do you have to replace or do to fit a eb/ed LSD diff to a eb/ed 6 cyl and how long does it take to fit a eb/ed LSD diff to a eb/ed 6 cyl

7. does fitting a diff with diffrent ratios make the car use more fuel and affect the speedo and will the speedo be out


ive noticed that you always seem concerned about using extra fuel,
to be honest, if your worried about fuel consumption, dont modify it at all, just leave it std...
ford designed it from factory to be as economical as possable while keeping reasonable power...
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 Post subject: Re: Diff Questions
Posted: Mon Aug 09, 2010 7:52 pm 
Getting Side Ways
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Joined: 5th Jun 2010

Ride: BA XT, NCII V8

Location: Adelaide
SA, Australia

hey while everyone is asking questions,

i got a ef fairmont and its slow off the line ( wont even do a little peel with bold retreads ).

i do mainly city driving so would like a beta diff for it,

if i get a diff from a Gli or something can i just change the centre or do i have to change the whole rear end also would like LSd

cheers guys
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 Post subject: Re: Diff Questions
Posted: Mon Aug 09, 2010 8:28 pm 
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buy an XR6 diff then... that will give you 3.45 ratio with an LSD...

If you just change the internals over you have re-shim and set the diff up from scratch again otherwise it'll chop out the gears one you...

If you want more still then go for 3.89 or 4.11's but unless you have the know how you'll need a diff place to put them in (unless you find a whole diff with the gears already installed)...

Cheers,
Tim

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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