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Old 11-04-2007, 01:16 AM
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Default How much??

Will the A4 transmission and stock rear end in my 99 Z28 handle 400 rwhp with just a shift kit and girdle??
Old 11-04-2007, 05:57 AM
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I have heard of it being done but for how long is a loaded question. How many miles are on your current set up, how has it been treated, and what is the condition of those parts? Might be a good idea to address those things first if your budget allows for it. Vince
Old 11-04-2007, 07:15 AM
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Mine has lasted 15k miles with absolutely no issues, but I take care of my car. And I have a girdle on the diff, also.
With an auto, rear end abuse is lessened.
With a TransGo shift kit, trans abuse is minimized. But both will let go, eventually, according to this site.
Old 11-04-2007, 11:04 AM
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Originally Posted by Coldsteel327
Will the A4 transmission and stock rear end in my 99 Z28 handle 400 rwhp with just a shift kit and girdle??
It depends on many different things mostly the shape of the trans now and how hard you are on it , I have heard of people running at 500hp and doing it a long time but I imagine they dont beat the crap outta it. Its is indeed a loaded question but anytime your doing Power mods the trans should be considered either future upgrade or even better a now upgrade, It sucks to have anything happen unplanned.
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Old 11-04-2007, 11:20 AM
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I know mine's living on borrowed time, but so far so good.




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