Originally Posted by stmpede
You will lose your top end with 4.10's.
Ya..a t45 revs at 6000 at 160 mph. I have 3.90s and 6000 rpm is 172. I guess the question is how much 160 mph driving do you do. Honestly the top speed is a mute point. It's about how fast you wanna get there. And going from 3.55 to 3.73 won't give you much extra pull. At least 3.90s. And I get about 26 mpg on the highway in my 5 speed
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