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.........Or just use a Q45 3.69 as it's a direct drop in
I have a JK41 with a 4.08 diff. It was cool for all of the first 10 miles because I thought I was Tommi Makinen going through several Monte Carlo stages. Then, I realized 2 things
1) 6th gear on the highway @ 75-80 (cruising speed around here) I am sitting at 3500RPM depending on my tire height
2) Rowing through gears, especially with my wide power-band (3700 - 8K), I actually lose time by rowing through gears, not being in the correct gear or rpm, etc. as the car is a dual duty street, HPDE car. I am actually thinking of swapping back to the Z32 with the 4.08 in all honesty.
Go with a 3.69.....
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