Quote:
Originally Posted by phk1967
Based on the online calculators im going a little over 2000 rpms with 2.93s, almost 2500 rpms with 3.55s, and a little over 2700 rpms with 3.90 with my tire height and tranny at 55 mph. My jeep patriot does about 3400rpms at 70 on the freeway so 3.90s I guess isn't so bad since most of my streets in town have a 35-45 speed limit. Besides 3.90s are lower than 3.55s so wouldn't it give me have a little better acceleration and more push to the seat? but everyone seems to be recommending 3.55s
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Your Patriot has half the cylinders and half the power. It needs 3.90's just to get moving.
You've got a Pontiac V8 with torque - you don't need the same gearing as a 4 banger...
Like I posted earlier, going from a 2.93 rear to a 3.55 will make you feel like Superman.
With those skinny 225/70/14's, you probably would have extreme traction problems with 3.90's or higher.
I've got a 3.42 geared 12 bolt in my GTO with 27" tall tires, and very happy with the "push to the seat". But I do have a 455...