Nouman would know. Good luck with whatever changes you decide on.
Sorry about that!
Gears question
Le Mans Master
Joined: Jan 2008
Posts: 7,155
Likes: 44
From: If you wanna live life on your own terms, you gotta be willing to crash and burn Florida
I have the upgraded gears on my 01 auto.....what are they exactly?
I cannot imagine anything higher, my tires wont hook up for the life of em and all I got is a BBK CAI,x-pipe and magna flow exhaust.
I was thinking of 3:42's in the future.
I cannot imagine anything higher, my tires wont hook up for the life of em and all I got is a BBK CAI,x-pipe and magna flow exhaust.
I was thinking of 3:42's in the future.
Race Director
Joined: Dec 2003
Posts: 12,599
Likes: 1
From: Texas
Go with the 3.73s. And, as suggested, put a stall in at the same time. Yank SS3200 here and I love it. See my sig for other mods (H/C/Intake, etc., etc). I would sugest you may want to just buy a 3.73 differential. I tried to have mine rebuilt and had whining issues. They tried new gears again, in the same carrier, and, for whatever reason, weren't able to shim it up to proper specs. Ended up buying a new carrier which they were able to shim up. Wasn't fun. I split the cost with my tuner and the rebuilder. He had never had a 3.73 gear installation failure before. 
Ed
Ed
Drifting
Joined: Apr 2008
Posts: 1,335
Likes: 0
From: Qualicum Beach British Columbia
I have a 2000 coupe. I've done heads/cam, intake and exhaust mods. I have about 400 RWHP on the dyno. I have heard a lot that upgrading my gears to 3:73 or 4:10s will make a huge difference and increase torque. Does anybody have advice on this? Actual dyno results? estimated cost of replacing gears? What does replacing gears affect....do I need another tune?
I understand that if you are going from 3:42 to 4:10's it is about the equivilent of netting and extra 100 hp at the wheels.............so I'm told.
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Pro
Joined: Dec 2007
Posts: 663
Likes: 0
From: Show me lower taxes Missouri
I had 2:73's in mine before I went to 3:73's. I probably got around 26-27 mpg with the 2:73's. Now with the 3:73's I get around 18-20.
Just do the math, at 70 mph I was turning around 1,750 rpm's, now I am turning around 500 rpm's higher with the 3:73's. More rpm's = lower gas mileage.
