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Old 07-10-2013, 08:30 AM   #257
Norm Peterson
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Drives: 08 Mustang GT, 10 Legacy 2.5GT, ...
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Quote:
Originally Posted by gajagfan View Post
. . . I would be concerned that the increased rear grip could bring back some understear, but assume the increased front grip would compensate for that
Close enough. More precisely, it's a matter of balancing the slip angles front vs rear, which generally follows what you do with tire sizes and wheel widths.


Quote:
what is the difference in the two rear diffs (1LE vs ZL1)? I ask because I do not know and am curious.
The ZL1 has a 9.9" ring gear and an iron diff case. I think those are ZL1-specific pieces not available otherwise. "Heavy duty limited slip" was mentioned in the early reviews for the ZL1, whatever that means.


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