dgey1

I've run across this info on the nicoclub site and thought it'd be helpful for those of us needing this. specs for g35 and g37 differentials and tranny's. I've been looking for this so that I could do an inexpensive vsld and lower gear swap for my 09 g37 journey sedan. hope this benefits others as well.

Doug


2009+ Sedan, 2009+ Convertible, 2009+ Coupe:
Configurations: RWD, AWD
Transmission, Gear Ratio:
6sp Manual
-- 1st: 3.794
-- 2nd: 2.324
-- 3rd: 1.624
-- 4th: 1.271
-- 5th: 1.000
-- 6th: 0.794
-- Reverse: 3.446
-- Final Drive: 3.692:1
7sp Automatic
-- 1st: 4.923
-- 2nd: 3.193
-- 3rd: 2.042
-- 4th: 1.411
-- 5th: 1.000
-- 6th: 0.862
-- 7th: 0.771
-- Reverse: 3.972
-- Final Drive: 3.357:1

2008 G37 Coupe:
Configurations: RWD
Transmission, Gear Ratio:
6sp Manual
-- 1st: 3.794
-- 2nd: 2.324
-- 3rd: 1.624
-- 4th: 1.271
-- 5th: 1.000
-- 6th: 0.794
-- Reverse: 3.446
-- Final Drive: 3.692:1



5sp Automatic
-- 1st: 3.841
-- 2nd: 2.352
-- 3rd: 1.529
-- 4th: 1.000
-- 5th: 0.839
-- Reverse: 2.764
-- Final Drive: 3.692:1

G37Sam

Good info indeed. Just wanted to point out that the 5AT on my '08 was also 3.357:1 vs the online advertised 3.69. You can see in my below pic 47:14 translating to 47 teeth on the pinion mated to 14 on the ring. 47/14 = 3.357!



We struggled to fit a 3.69 ratio in it or a 4.08 for that matter and my assumption is since the American Spec AT's also struggle to do that, then they'd probably have same ratio.

Can some with a US Spec 5speed confirm this? The number of teath is marked on the pinion gear.