Just something to think about
You need to figure what RPM you will be turning in your top gear at 65 mph. I can tell you from expirence that depending on your motor it could suck.
Although mine is completely different than yours, this is what I ran into.
I have 19s on the back with 285/30/19 I believe it is 27 tall. 3.80 gear and a T56. At 65 in 6th I was turning 1500 RPM. My car idles at 950. If anyone slowed me off of the 1500, my car would lug and I would have to shift into 5th. Big pain in the ass. Changed the gear to 4.11 and now in 6th at 65 mph I am turning 1750. Does not sound like that big of a deal but it is huge cruising on the interstate in traffic or trying to obey the law. I can slow to 55mph with out a down shift.
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