How off will it be
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Joined: Jul 2008
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From: The tragic kingdom
How off will it be My rear broke bigtime. I have 3.73 A4. funds are tight so i found a complete rear end with 2,73s. I will need to drive it for a week until i get the pcm reflashed. How many mph will speedo be off? higher or lower? I know shift points will be off.
it will be off around 25% , I would be most concerned with whether rpm and mph will be met to initiate shifts in the tune thats a big gear change to expect the tune to absorb , it would suck to have to add a trans to your budget...
...and may also put you firmly in "ticket territory" if you don't pay attention. When your speedo says 65, you'll be over 80.
