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changing ratio in xf lsd?? 

 

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 Post subject: changing ratio in xf lsd??
Posted: Mon Jun 19, 2006 7:32 pm 
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what diff can i pull a 3.23 ratio crownwheel and pinion out of to replace the 2.77 set on the lsd centre?
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Posted: Mon Jun 19, 2006 9:06 pm 
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IIRC the housing for a 2.77 wont accept the gears from a lower ratio diff

as for sources..... utes/vans and 5 speed manuals are the best starting point

 

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Posted: Mon Jun 19, 2006 9:45 pm 
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G'day

The housings are no different, but you need to change all the internals over.

As far as i know you can put any diff internals from anything up to eb in an xf housing.

I'm looking at doing this atm because my 2.77 lsd is on the way out.

Cheers

 

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Posted: Tue Jun 27, 2006 1:48 pm 
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anyone know how to change the gear ratios over? but keep the LSD centre

 

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Posted: Sun Jul 23, 2006 7:00 pm 
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I have EF 3.23 gears i want to put into a EA 2.77 LSD diff. straight swap? keeping the EA LSD part?
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Posted: Thu Jul 27, 2006 7:24 pm 
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nope. try to get ur hands on a 2.92, 3.08, 3.23, 3.27 or a 3.45 LSD centre.
apparently someone makes a spacer plate so you can use the 2.77 centre with the lower ratios.
The reason that the centres are different for 2.77's is in order to make a a*** with a 2.77:1 ratio, the size of the pinion had to be increased, which also meant that the crownwheel had to be offset further to one side.
If you cant find a decent falcon diff, try getting a limo centre out of a atmo VL. atmo VL 25 spline. TurboVL 28 spline. EA-ED 25 spline. EF-EL 28 spline. VN onwards 28 spline.

 

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Posted: Thu Jul 27, 2006 8:23 pm 
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thanks for that, though i have the crownwhel and pinion a*** in 3.23 ratio so does that solve the problem of the 2.77 pinion being too big? if i use the 3.23 pinion?
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