[MetroMPG]

Originally Posted by blowncopcar

woud it be an easy, straight forward swap or would there be problems anywhere?

I've done it -- my first and only transmission re/re on a fwd car -- and there were no real problems. You may also need a different shifter brace though.

See: Project 'nerd gear': taller tranny transplant nets +5.2% MPG - MetroMPG.com

And: http://ecomodder.com/forum/showthrea...-gain-107.html

There are some from 200-375 bucks within 350 miles of me.

Have you done the math? How long would it take for a ~5% efficiency gain to pay itself off? (Assuming financial savings is your motivation.)

ALSO, I PLAN ON SWAPPING CAMS WITHIN THIS YEAR, TOO. Either xfi or new grind i'll prolly order a new one. WOULD IT BE BETTER TO DO THE CAM OR TRANS FIRST?

I suppose it makes slightly more sense to do the cam first, since you'll then have more torque to handle the taller gearing. But I don't think it really matters - I did it "backward" though. International heart transplant: the Blackfly gets an XFi cam - MetroMPG.com

EDIT: Or would another tranny be better? Like the 3.79? I know I would have to dog the 3.52 but would the mileage be better with one or the other? I REALLY WANT THE 3.52.

The lower the RPM, the better your cruising MPG. 3.52