Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

input shaft broke

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Old 02-07-2007, 03:54 PM
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Default input shaft broke

to make a long story short, i was about to streetrace of the line did a burn out, tires didnt spin all you smelled was the clutch but since it was a 2nd burnout I though, what the hell they should be sticky lol. anways raised the rpms waiting for the guy who was flaging and the hands went down punched and the only thing I heard was a loud sound like something broke. Ofcourse it was the clutch b/c the car was still on but wouldnt go no where. Next day started with the removal of the tranny and ofcourse 1st you need to take off the driveshaft. well the **** didnt want to come off. Ok.. Didnt understand why, anyways finaly got fed up pulled it hard of and damn the shaft in the back of the tranny all of a sudden was loose.(inupt shaft) wtf.. you could actually move it around. Anyways yeah my mcleod twin disk was in pieces.

ok this tranny was recently build by a friend of a friend ( i know doesnt sound good right of the bat) well anyways he has rebuild a couple of guys t56 but i bought all new syncroz and goodies and even a new input shaft.. this **** seriously doesnt even have 1K miles on it. anybody ever heard about this happening? the tranny felt good compared to before but **** come on it close me like $500 for the shaft and piece of grad took a **** on the second launch.. just doesnt seem right.. let me know what you guys think. thnx

Last edited by pewter 01 SS; 02-08-2007 at 11:49 AM.
Old 02-07-2007, 04:07 PM
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Go a pick of the shaft damage??
Old 02-07-2007, 04:14 PM
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lol not to be a jack *** but **** it was hard to read this. . .hahaha carry on.. i would say call who ever sold u the rebuild kit. . and ya pics please
Old 02-08-2007, 11:50 AM
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Originally Posted by nitrorocket
Go a pick of the shaft damage??
no i took the tranny to the guy already..
Old 02-08-2007, 11:51 AM
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Originally Posted by flash12t
lol not to be a jack *** but **** it was hard to read this. . .hahaha carry on.. i would say call who ever sold u the rebuild kit. . and ya pics please

my bad my bad. see what happens when your at work trying to type fast w/o getting caught by the boss lol..

i should of taken pix before i took it back..
Old 02-08-2007, 11:53 AM
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has anyone else ran into this problem.. with my luck i bet im the only one
Old 02-09-2007, 04:41 PM
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Ttt...
Old 02-09-2007, 07:46 PM
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Which shaft was broken?

The one that connects to the clutch or the one that connects to the DS?
Old 02-12-2007, 09:44 AM
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Originally Posted by Dragula
Which shaft was broken?

The one that connects to the clutch or the one that connects to the DS?

the one that connects to the DS.
Old 02-12-2007, 10:34 AM
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That is the ouput shaft. I have twisted mine but never broke it.
Old 02-12-2007, 02:47 PM
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Originally Posted by Ls1Joe
That is the ouput shaft. I have twisted mine but never broke it.

never seen nor never had it happen either. yeah the output shaft. and i thought after the money i spend on it, it wouldnt break
Old 02-12-2007, 03:27 PM
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Originally Posted by Ls1Joe
That is the ouput shaft. I have twisted mine but never broke it.
Have you ever heard of the input shaft being bent or warped??
Old 02-12-2007, 04:29 PM
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I have never seen one bent like that. We see the splines twisted off but not bent or warped.

Thanks,
Amber
Old 02-13-2007, 07:19 AM
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They will bend /warp if the rear end lets go(output shafts). The impact to the whole drivetrain is tremendous.
Fcars actually have a small cross-section spline( I can never remeber if its 27 or 28T). There are other model shafts that significantly beef-up the output. An SSR shaft will most difficult to break( 32 T) and the Fcar trans can be modified to accept it( requires a larger bushing and a yoke change).



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