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I supported Toymods
Location:
Australia
Registered:
November 2003
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Driveshaft worries
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Thu, 22 April 2004 14:00
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As some of you may, or may not know, I've had to push my motor and gbox forward an inch to clear the xmember.
This has resulted is the driveshaft losing 1" grip on the tranny output shaft.
Now, assuming that stock it has about 3.5" of grip, then it now has probably 2-2.5" of grip.
Is this dangerous?
I do plan to get it lengthened, but I just had the shaft rebuilt before I realised I needed to motor to move forward, so spending more money on this driveshaft would probably make it the most expensive in the world.
Thoughts plz the powers that be.
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Location:
MACKAY
Registered:
May 2002
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Re: Driveshaft worries
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Thu, 22 April 2004 21:46
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With the shaft being to short you may get a bad shaft vibration , but try it first as it may be ok .
Trevor
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Driveshaft worries
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Wed, 16 June 2004 23:31
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Just thought I'd bump this and get anymore opinions.
I'll be getting ready to drive the car in just over a week, obviously I'll fix it before I head to the drag, but just curious on ppls thoughts.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Driveshaft worries
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Thu, 17 June 2004 00:41
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| CrUZsida wrote on Thu, 22 April 2004 22:00 |
I do plan to get it lengthened, but I just had the shaft rebuilt before I realised I needed to motor to move forward, so spending more money on this driveshaft would probably make it the most expensive in the world.
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Not wrong 
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Membership Secretary
Location:
Sydney
Registered:
June 2002
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Re: Driveshaft worries
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Thu, 17 June 2004 02:14
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If it isn't in far enough you can risk twisting the out put shaft of the gear box.
When I got mine re done (this was into a W50) the drive shaft bloke said from the centre line of the uni to rear gearbox was going tobe 165 mm. This may change will different uni's. My tail shaft sticks out approx an 1" at ride height.
Also what is the diametre of the shaft????
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Driveshaft worries
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Thu, 17 June 2004 02:25
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Not sure on the diametre Stitt, havent checked it.
Its stock MX73 what ever that is, but the front half is a bit thicker than the rear
Heres a pic
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Membership Secretary
Location:
Sydney
Registered:
June 2002
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Re: Driveshaft worries
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Thu, 17 June 2004 02:42
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Just asking cause Joel (bigworm) had problems with his bothers 1J MX73. The 2nd section of the stocker Tailshaft where the rubber, is was sucking into itself and pulling the centre bearing out of its housing and pulling the tailshaft out of the back of the box. This was causing some real cool shudders and noise's shifting into 2nd and on deccel. This was fixed with a solid rear section. Noises stoped however this was only 2 or so weeks ago and I don't know how it has taken to some serious driving.
Also the bloke who did the shaft recomended that they go bigger in diameter to cope with the extra power. Just his brother didn't want to step up I don't now why don't want to get involved. (our tailshafts where built on the same day at the same place). I think that the stocker MX73 is 2.5' and you may want to step up to atleast a 3'.
Now your gonna say to step up you need bigger uni's and these won't bolt up the diff flange. To solve this go and get a flange of a Hilux with a F series diff, also centre bearings have the same flange. These have a large diameter 3 and a 1/4 or a 1/2' which can be redrilled to suit any large uni to cope with the power of your wonderful V8.
This modification is what i did when I up sized my tailshaft when it poped.
Hope this helps.
PM for more info.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Driveshaft worries
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Thu, 17 June 2004 02:47
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Thanks Stitt
I'll just take it as it comes
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