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Old Oct 14, 2009 | 03:14 AM
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Default T56 help

My buddy has an 04 Z06 and he has already rebuilt his T56 once after he broke the main shaft. He wants to know who makes the best built T56.. thanks in advance
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Old Oct 15, 2009 | 02:27 AM
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Originally Posted by TexasSuperChevy
My buddy has an 04 Z06 and he has already rebuilt his T56 once after he broke the main shaft. He wants to know who makes the best built T56.. thanks in advance
does he drag race it or road race it or just crazy *** street racing?

if he has not had any professional training he can break any transmission built by the best shops in the world!
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Old Oct 15, 2009 | 08:23 PM
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Might be time to step up to a tr6060
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Old Oct 16, 2009 | 02:43 AM
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he does some crazy *** drag/street racing. he doesn't need professional training, the transmission can't keep up with him lol. tell me more about the tr6060, i'm a noob to 6-speeds...
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Old Oct 16, 2009 | 07:37 AM
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Originally Posted by TexasSuperChevy
he does some crazy *** drag/street racing. he doesn't need professional training, the transmission can't keep up with him lol. tell me more about the tr6060, i'm a noob to 6-speeds...

How did he break it?
in launch or? what are his mods? what kind of tires?


www.thegearbox.org, good service...
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Old Oct 16, 2009 | 08:32 AM
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He's probably got drag radials on the back of it. They are hard on Vette T56 units. We see a lot of busted mainshafts and tailhousings from Vettes with DRs on the back of them.
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Old Oct 16, 2009 | 05:04 PM
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Well when the transmission broke it was on street tires and he was rolling and did a 2nd gear clutch dump.. It was rebuilt using a hardened mainshaft and he also upgraded to a DTE differential and textralia clutch. His mods are vara ram CAI, longtubes, no cats, and a dyno tune. Recently the car would get harder to put into gear which is probably cuz he needs a new master and slave cylinder. He would still race ocassionally and now 2nd and 4th grind badly when putting it into gear, but 3rd won't even engage.
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Old Oct 16, 2009 | 05:43 PM
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Originally Posted by TexasSuperChevy
he does some crazy *** drag/street racing. he doesn't need professional training, the transmission can't keep up with him lol. tell me more about the tr6060, i'm a noob to 6-speeds...
Called the Magnum. Newer improved version wider gears, larger output shaft, etc...
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Old Oct 16, 2009 | 09:19 PM
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oh i forgot he went with 3.90 gears and he didn't want to change his ratios. best time so far has been 11.5x @ 121mph

Last edited by TexasSuperChevy; Oct 17, 2009 at 06:48 AM.
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