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Author Topic: Quaife ATB diff - will it kill my driveshafts  (Read 11230 times)

Offline Alex

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Quaife ATB diff - will it kill my driveshafts
« on: January 28, 2009, 07:21:45 pm »
I've sorted myself out with a Quaife ATB diff today, which I'm very happy about! :)

One thing worries me though, I'm still running GT driveshafts.

Have I just bought myself a one way ticket to a snapped driveshaft?
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Offline giorgio

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #1 on: January 28, 2009, 07:30:27 pm »
I have to check ETKA but I think GT shaft are same as normal polos.

More importantly the inner CVs are the same. My G chewed through one of these in about 20 seconds [no exaggeration]

That may be more the nature of my clutch so you may be ok.

Go G40 since the box is coming off
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Offline hayesey

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #2 on: January 28, 2009, 07:40:15 pm »
have been running LSDs and driveshafts from a non-g40 for years and never snapped one.  Where they tend to fail is the same on a g40 shaft and non-g40 shaft anyway which is just before the spline part on the outer end.
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Offline Alex

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #3 on: January 28, 2009, 07:42:18 pm »
I think I'll try it, fuck it, if I break a driveshaft I'll be as out of pocket as I would be from changing it on spec.

Is anyone making them any more though?

Oh yeah, and what's a standard clutch good for power wise?
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Offline lance

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #4 on: January 28, 2009, 07:47:27 pm »
i have had mine uprated pick it up next  onth ill take photos for you all,
standard clutch should take about 160 bhp.
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Offline hayesey

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #5 on: January 28, 2009, 07:59:55 pm »
a clutch would be rated more by torque than bhp.  I remember Paul Borthwick used to get on just fine with 170bhp on a standard clutch.  Just an uprated one will last longer. 
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Offline Alex

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #6 on: January 28, 2009, 08:09:06 pm »
Something else to look into then!
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Offline Alex

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #7 on: January 28, 2009, 08:10:16 pm »
Sorry, I didn't explain that, I reckon after a cam, headwork and a rolling road remap (all coming up) it'll be around 160bhp. Probably a bit under.
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Offline hayesey

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #8 on: January 28, 2009, 08:12:11 pm »
yeah I'd probably be happier using something along the lines of a helix organic clutch at that point.
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Offline Alex

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #9 on: January 28, 2009, 09:33:56 pm »
I had a feeling you were going to say that! Not a massive problem, worth it in the long run too.
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Offline Dan

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #10 on: January 28, 2009, 09:47:14 pm »
Alex, are these Diffs readily available or availble to order from Quaife ?
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Offline Alex

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #11 on: January 28, 2009, 10:33:50 pm »
They're in stock, yes.
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Offline polo classic

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #12 on: January 29, 2009, 02:41:48 pm »
Quote from: hayesey on January 28, 2009, 07:40:15 pm
have been running LSDs and driveshafts from a non-g40 for years and never snapped one.  Where they tend to fail is the same on a g40 shaft and non-g40 shaft anyway which is just before the spline part on the outer end.

You must be lucky (or drive like a granny) then, I thought the record with a plate diff was 2 weeks for the stock shafts :P
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Offline hayesey

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #13 on: January 29, 2009, 02:46:45 pm »
I don't drive it like a granny at all, I guess I've just been lucky.  I've ruined a couple of ATVs and snapped a gemini diff in half but driveshafts have been fine.
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Offline hayesey

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Re: Quaife ATB diff - will it kill my driveshafts
« Reply #14 on: January 29, 2009, 02:49:06 pm »
did all the cup cars have uprated driveshafts then?  I thought they were all standard
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