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Trying to find diff gears for my fg 

 

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brad17djr
 Post subject: Trying to find diff gears for my fg
Posted: Mon Mar 21, 2011 8:22 pm 
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does any one know where i can get a set of 3.27:1 diff gears brand new for a xr6 non turbo fg sedan ford want to charge me $980 just for the crown wheel and pinion

 

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Papa Smurf
 Post subject: Re: Trying to find diff gears for my fg
Posted: Mon Mar 21, 2011 8:50 pm 
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How old is your FG? you will lose your warranty on the gear train.
I could do a better price than that but it will still cost you some $$$.
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brad17djr
 Post subject: Re: Trying to find diff gears for my fg
Posted: Tue Mar 22, 2011 8:40 pm 
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my fg's a 2009 model it's already got a after market LSD in it so warentys no isue plus i used to work at the dealer who's the supplyer of the gears? cause i have a abn number to order a set and it will be much cheaper.

 

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phatba
 Post subject: Re: Trying to find diff gears for my fg
Posted: Tue Mar 22, 2011 9:27 pm 
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im sure some went on ebay recently. although im sure papa smurf can look into a decent price for you if you want new.
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data_mine
 Post subject: Re: Trying to find diff gears for my fg
Posted: Tue Mar 22, 2011 11:07 pm 
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Why 3.27's?

Assuming you've got the ZF auto, go for 3.46's (easy to find from all the manual owners after they upgrade to 4.11's)

 

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brad17djr
 Post subject: Re: Trying to find diff gears for my fg
Posted: Wed Mar 23, 2011 10:14 pm 
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because 3.27 is good for the power im making to be a good all round gear plus i don't have a m86 diff so 3.46 is harder to come by even still 3.27 will be a step up from 2.73 and my x3 don't have a file for 3.46 on the fg's

 

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brad17djr
 Post subject: Re: Trying to find diff gears for my fg
Posted: Wed Jun 15, 2011 11:32 pm 
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this is becoming impossible to find. been waiting 6 months now for a effing set of gears probly going to just go for the 3.46 gears as they should be easy to get..... maybe

 

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Benny D
 Post subject: Re: Trying to find diff gears for my fg
Posted: Thu Jun 16, 2011 10:46 pm 
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would the standard geard outta the B series fit? 3.23 ratio?

 

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data_mine
 Post subject: Re: Trying to find diff gears for my fg
Posted: Thu Jun 16, 2011 11:25 pm 
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Benny D wrote:
would the standard geard outta the B series fit? 3.23 ratio?


There's two different diffs used in the B series.

BW78 and BW86

the 78 is the smaller of the two and found in n/a 6's
The 86 is stronger, and found in 6t's and all 8's.

the number is a rough size of the crown wheel. e.g. 7.8" and 8.6"

The gear set are obviously not interchangeable.

 

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Benny D
 Post subject: Re: Trying to find diff gears for my fg
Posted: Fri Jun 17, 2011 10:19 am 
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yea. as he said in first post hes lookin for a new set of gears for a non turbo xr6.

what is the ezyest way to identify between bw78 and bw 86?
is it mentioned on the diff tag at all?

 

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brad17djr
 Post subject: Re: Trying to find diff gears for my fg
Posted: Sat Jun 18, 2011 9:52 pm 
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yeah 3.23:1 will fit but i realy want 3.27's or 3.46's
im prity sure the m76 diff is a 28 spline and the m86 is a 32 spline. the 3.27 ratio is found in gas falcons.
id realy like new gears but if i can get a good set of 2nd hand gears they will do

 

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Papa Smurf
 Post subject: Re: Trying to find diff gears for my fg
Posted: Sun Jun 19, 2011 10:47 pm 
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There are two types in FG, M80 4 pinion and M86 2 Pinion.
The only listing I Can find for the 3.27 Diff ratio is for an M80, I thought ALL FG XR's used the M86?

M86 uses a 220mm Diameter gear set and you can get the 3.46 ratio for them but the 3.27 is ONLY used on the NON LSD M80. The M80 uses 28 splines and the M86 uses 30.

Crown Wheel and Pinion, BAC 4209 B $1242.00 retail.
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brad17djr
 Post subject: Re: Trying to find diff gears for my fg
Posted: Tue Jun 21, 2011 8:27 pm 
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mine is definatly a M80, cause i had that drama when i bought my lsd from harrop, they sent me a m86 center then a AU center, then finaly the right 1 wich turned out to be the same part number as a VZ SS commodore :S. Acording to my diff shop the gear sets have been on back order for ages from Dana.

Does Melbourne have any instock or does tomson ford get them direct from dana?

 

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Papa Smurf
 Post subject: Re: Trying to find diff gears for my fg
Posted: Tue Jun 21, 2011 10:25 pm 
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We buy only from Ford. I will check tomorrow for you. :)
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brad17djr
 Post subject: Re: Trying to find diff gears for my fg
Posted: Wed Jun 22, 2011 8:55 pm 
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cool thanks mate :)

 

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