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3.7 or 3.9 diff gears for my charged v8 stato?

walesy

Aint no family cruiser!!!
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to be honest it wont be much of a difference between those two really... theyre both gunna rev high in normal hwy driving if you use it at the strip as long as you dont max out a gear just before the line with the 3.9's then it would bo ok, otherwise go the 3.7's... anyone here with a 5ltr stato that has tested these gears?
 

v8_stato

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no worries mate,i dont do a great deal of hwy driving but i dont really like the idea of the gears reving out real quick,obviously 3.9s r gonna rev out quicker so thats y im leaning towards 3.7s.but is there a massive difference?any help would be great cheers.
 

H1GHROLLR

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for sure go the 3.9 you have to lose some to gain some if you know what i mean mate
 

Pub247

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3.45 would proably be better suited as its making good power whilst you still gain some acceleration down low with them
 

eaton v8

my little sleeper
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3.45 would proably be better suited as its making good power whilst you still gain some acceleration down low with them
i like them and your speedos only out by 10k at 60kph
 

Wagon_Wheel

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Ive got 3.9s in my blown clubby, but its manual so its a bit different.
And im going back down to 3.45s. 3.9s were great for n/a but now with the blower, it revs out too quickly
 

Pub247

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itll be easier and cheaper to find and buy 3.45's compared to 3.7 they pretty rare
 
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