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Methodical4u · 11-20-2011, 01:00 AM

I'm just wondering how much power do you lose up top? What speed does it stop pulling hard? Do the 3.90's really make THAT much of a difference from the 4.08's?

11-20-2011, 01:00 AM	#1 (permalink)
Methodical4u A True Z Fanatic Join Date: Jun 2011 Location: Maryland Posts: 1,393 Drives: 11 370 6mt pw w/sp Rep Power: 16	4.08 or 3.90 gear questions... I'm just wondering how much power do you lose up top? What speed does it stop pulling hard? Do the 3.90's really make THAT much of a difference from the 4.08's?