VHR + FD Gear Ratio upgrades - 3.9 and 4.08

jchammond · 02-01-2015, 04:25 AM

Quote:

Originally Posted by wstar

Yeah that's a concern for me too. In the 7AT our rear end is even worse ratio than you 6MT guys (7AT is 3.357, 6MT is 3.692). However, at the speeds I like to cruise at on the highway (when possible), I don't want the revs going any higher in 7th than they are now. 7AT really could use an 8th gear (or just taller transmission gearing in 6 and 7 both) for us high-speed cruisers

i'm a new member & have been looking over a lot of pages,,,,i am wanting to swap the 3.36 diff from my base/auto 370 for a 3.69 manual diff..
top end would still be the same-just closer to the 7500 redline in 5th.
currently limits out at 7k in 5th-showing 158mph on speedo.
dont drive like that a bunch/but it's an adrenaline rush!
has anyone done this and does it affect the traction control or cruise.
thanx for any imfo.

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