3.73 vs 4.10
Lead Driver
Joined: May 2011
Posts: 5,776
Likes: 443
you wont see much more than 10 no matter what you do. 12-13 is a 20-30% increase in mileage, which wont come from a gear swap alone. the 302 doesnt like movin stock tires, let alone 35's. . .i agree with lew i'd go with somethin in the mid-high 4's. i never got over 11 with my 302 no matter what tires i ran, and i have 33's, 35's and 37s that i swap depending on what im doing.
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Fleet Owner
Joined: Jul 2006
Posts: 20,362
Likes: 824
From: Mi'kma'ki
your not going to be happy until you ditch the lift and run stock tires then.
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FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
You need 4.30 gears just to get back to the stock final drive ratio.. which is still a bit high for a rather gutless 5.0, so 4.56 would be my suggestion as well.
And.. if you haven't done so already do yourself a favor and recalibrate the speedo.
And.. if you haven't done so already do yourself a favor and recalibrate the speedo.
Cargo Master
Joined: Apr 2003
Posts: 2,408
Likes: 5
From: Parkesburg PA
First, don't bother wasting your time or money with 3.73's. They are too close to your 3.55's to make a difference.
4.56's are the closest to stock tires & 3.55's. 4.56's are probably your best bet unless you do mostly off road / city driving. Then I would do 4.88's.
4.56's are the closest to stock tires & 3.55's. 4.56's are probably your best bet unless you do mostly off road / city driving. Then I would do 4.88's.
Junior User
Joined: Mar 2011
Posts: 63
Likes: 0
I'm also interested in a similar swap from 3.55 to something different? I've done some research and am thinking about 4.10s. Question is, do I need to get a c-clip eliminator kit? I've not found a sure answer to that. And where do you guys reccomend to get all the parts? Cheaper is better but dont necessarily want junk parts. May have to resort to that.
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Freshman User
Joined: Oct 2010
Posts: 38
Likes: 0
It's not entirely gutless. I did a mass airflow conversion on it a couple of years ago with a mustang gt computer. I also have plans to swap out the cam. But I do concur, the 5.0 in the trucks, sucks.