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lsd diff 

 

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 Post subject: lsd diff
Posted: Mon Apr 11, 2011 11:53 pm 
Getting Side Ways
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SA, Australia

hi

putting a lsd diff into the ed fairmont with normal diff, put a new speedo sender in and wondered if the new sender would work with the new lsd diff or if itd need a new sender.

how does a lsd digg get rebuilt
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 Post subject: Re: lsd diff
Posted: Tue Apr 12, 2011 8:53 pm 
Getting Side Ways
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Ride: 5.0lt NF /351 ZD Fairlane

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Speedo sender is in gearbox - not related to diff, diffs are tricky to do yourself, best get it done by a pro, although can be a bit pricey!

 

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 Post subject: Re: lsd diff
Posted: Wed Apr 13, 2011 1:29 am 
Getting Side Ways
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so will a 3.45 diff put the speedo out
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 Post subject: Re: lsd diff
Posted: Wed Apr 13, 2011 6:27 am 
Tyre Shredder
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You need to read this:

documents.php?d=30

If you actually understand how it works then use the calculator to work out what speedo gear you need to suit your car and it's wheel size.

If it makes no sense to you at all you probably shouldn't be doing the Diff swap.
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 Post subject: Re: lsd diff
Posted: Thu Apr 14, 2011 8:46 pm 
Getting Side Ways
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What are you changing to 3.45 from??

If you're going from 3.08 or 3.23 then you're virtually wasting your time as the ratio increase will be barely noticeable - need to go to at least 3.7 for a decent improvement in off the line performance AND an improvement in traffic speed vs gearbox matchup.

If you're just after the LSD function (hope you know how to handle it?? - otherwise will look forward to seeing your car in the wrecker pages - and hope you survive the crash of course) then carry on...

 

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 Post subject: Re: lsd diff
Posted: Fri Apr 15, 2011 6:23 pm 
Getting Side Ways
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Ride: 5.0lt NF /351 ZD Fairlane

Location: Wattle Grove
NSW, Australia

Greenmachine wrote:
What are you changing to 3.45 from??

If you're going from 3.08 or 3.23 then you're virtually wasting your time as the ratio increase will be barely noticeable - need to go to at least 3.7 for a decent improvement in off the line performance AND an improvement in traffic speed vs gearbox matchup.

If you're just after the LSD function (hope you know how to handle it?? - otherwise will look forward to seeing your car in the wrecker pages - and hope you survive the crash of course) then carry on...


I changed my NF 5.0 to 3.45 from 3.23 and the difference is noticable - not earth shattering but a good difference! 3.7's usually cost a bomb though 3.89's might be a cheaper option.

 

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