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Old 10-28-2003, 18:09   #1 (permalink)
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25 or 28 Spline

I have a standard LSD 2.77 i think. DOes anyone know how many spline the axles are?

Some have told me 25 and yet others have said 28

So i dont know whether to upgrade just the centre or the entire diff... (need extra strength!)
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Old 10-28-2003, 18:24   #2 (permalink)
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Re: 25 or 28 Spline

Its a 2 pin, 25 sp.

What sort of power you going to run? Auto/manual?
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Old 10-28-2003, 18:35   #3 (permalink)
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Re: 25 or 28 Spline

Bass,

Im currently running a 3 speed (borgwarner 35 xe), by christmas i should have a t5.

Power figures im unsure of atm.... however i would like to see around 275bhp..... im told i can acheive that through a c.o.m.e. cam....

hence reason why i think i should go the 28spline..... its fun droppen a few burnouts with m8s.... (esp.. my m8s cuz the majority of them all have atm quicker cars than me :( )
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Old 10-28-2003, 18:40   #4 (permalink)
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Re: 25 or 28 Spline

who told you those power figures?
I had the COME treatment on my XF putting out around 230 at the engine and my stock diff and axles were fine. There were plenty of burnouts too.

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Old 10-28-2003, 18:53   #5 (permalink)
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Re: 25 or 28 Spline

Dan,

My mistake cam and head sorry
I rang c.o.m.e racing and they told me that with their cam and head i can get 275 and with stg 3 head 300
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Old 10-28-2003, 22:04   #6 (permalink)
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Re: 25 or 28 Spline

what sort of price did they give you on that cause im looking at a rebuild and some work on my XF
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Old 10-29-2003, 14:48   #7 (permalink)
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Re: 25 or 28 Spline

Take it from someone who has blown 2 2pin 25sp diffs, get your self a 4 pin 28sp!! Its actually the center that is the weak link, rather then the axels tho

If it were auto, the diff would be ok, but not in a manual mate... trust me.


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Old 10-31-2003, 08:25   #8 (permalink)
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Re: 25 or 28 Spline

the 25spline axles are pissweak, you r lucky to go further than 1 corner with a minispool in one, but you will never break a 28spliner (minispooled) if you tried. proof of this, you ring a diff specialist and ask if they make tougher 28 spline axles, most don't they just say, WHAT THE, you won't break a std 28spline
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Old 10-31-2003, 09:59   #9 (permalink)
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Re: 25 or 28 Spline

you get some life out of a lsd i had a v8 xd with lsd 25 spline the open centers.

or if you can find diff from v8 center and axles from a zh -k or xc-e there all 28 spline and same wheel base so axles and center should swap over or in xe hole diff would.
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Old 10-31-2003, 10:39   #10 (permalink)
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Re: 25 or 28 Spline

I bought a complete diff and axel set up off centeral diffs (look in Street Machine for number) 4 pin lsd 308 ratio with 28 spline axels for $800 I think (comletely re-built)
So why not just get some thing like that done
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