11-12-2007, 10:11 PM
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3" Exhaust
Join Date: Sep 2006
Location: Texas Gulf Coast
Posts: 99
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Rear differential question
I am looking for ways to improve the fuel efficiency of my '90 NA. The code on my door sticker (G282) says my rear end is an open 4.3 ratio. I understand that 3.9 and 3.7 ratios were also available. What difference would I see if I switched to a 3.9 or 3.7 and is this something that would require replacing the whole differential or could they just open up my existing one and replace gears?
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Current ride: Not a Supra :-( |
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