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putting a XR6 LSD 3:45.1 do i need to recalibrate my speedo. 

 

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 Post subject: putting a XR6 LSD 3:45.1 do i need to recalibrate my speedo.
Posted: Wed Oct 22, 2008 9:20 pm 
Oompa Loompa
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PLEASE SOMEONE READ AND TELL ME I HAVE BEEN GETTING DIFFRENT ANSWERS,IM COMFUSED..

:roll: :roll:
Hi there and thanks for all the help. I am running a EL xr6 tickford motor and EL xr6 tickford ( auto transmision ) and a EF xr6 tickford ECU and the 300 kp fuel presure regulator and the 16" EL tickford wheels and im just about to put in a EF xr6 tickford LSD 3:45 Ratio Diff.So can someone tell me if i have to recalibrate my speedo???????
AND MY CAR IS A EF FAIRMONT.Thanks Peter.....
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Posted: Wed Oct 22, 2008 9:31 pm 
Getting Side Ways
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This should answer all your questions.

http://www.fordmods.com/forums/Speedo-Calc-d30.html

 

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Posted: Wed Oct 22, 2008 9:38 pm 
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If you have installed an XR Gearbox, then No, once you have the XR diff then you won't need to alter the Speedo gear.

All Clusters use the same Pulse.
So there is no speedo difference between the GLi, XR and Fairmont clusters.

 

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Posted: Wed Oct 22, 2008 9:49 pm 
Oompa Loompa
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thanks guys thanks for all the info and help.
FORDMOD ONCE AGAIN YOU DID IT AGAIN
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Posted: Thu Oct 23, 2008 8:03 am 
Getting Side Ways
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The only way to know for sure is to remove the speedo drive and see which colour the gear is, they are colour coded.
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Posted: Thu Oct 23, 2008 10:29 am 
Getting Side Ways
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Like i said in the other post,if you run the xr6 ecu, trans and diff you wont have a problem but as ltdho said the only real way to see what gear it has is to take it out and see.
There are 3 different gears for the ef xr6 that ford sell, i only just went through all of this 3 or 4 months ago.

 

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Posted: Fri Oct 24, 2008 9:13 am 
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you need the 23 tooth black cog i think.

 

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Posted: Sat Oct 25, 2008 4:28 pm 
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or just use a GPS to check your speed if its right then youd don't need to calibrate it or change the speedo gear.
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