Recommended axle ratio
Thread Starter
|
Freshman User
Joined: May 2009
Posts: 44
Likes: 0
Recommended axle ratio
what would be a good axle ratio for a 1994 f150 4.9l?
I'm looking for a bit of speed, but i don't want my top speed to suffer too much, although i never drive faster than 75
Would a 4.10 be good?
I'm looking for a bit of speed, but i don't want my top speed to suffer too much, although i never drive faster than 75
Would a 4.10 be good?
Last edited by Tyler Burdett; May 7, 2009 at 08:52 PM. Reason: wording
Freshman User
Joined: Oct 2008
Posts: 45
Likes: 0
From: Massachusetts
If you jump to a 3.73 you'll see a huge power increse but itll prolly drop your mileage down to around 12. Also with these calculators you can figure out the RPMs youll be spinning to do 65 on the highway.
Currie Enterprises Calculators#?
Currie Enterprises Calculators#?
Freshman User
Joined: Oct 2008
Posts: 45
Likes: 0
From: Massachusetts
Well I've never driven a six banger, so I dunno Id guess right around 12 or 13. I do know that my 94 F-350 with a slightly modified 351W and non overdrive trans with 4.11s gets about 12 if im gentle around town. My truck does weigh in at 5500 pounds though so.
Trending Topics
Hotshot
Joined: Sep 2001
Posts: 11,958
Likes: 228
You don't need 4.10 for the 4.9 unless you have really large tires. That is a complete mismatch for the 300 inline 6. It makes low end power and doesn't need any more than 3.55 gears. The 4.9 doesnt make high rpm power. If your truck had a 302 or 351 then I would suggest 3.73. I probably wouldn't suggest 4.10 for a daily driver with stock or near stock tires.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
That's my vote too, 3.55 for this combo. An I predict milage will go up not down, you should see an easy 20mpg highway.
Thread Starter
|
Freshman User
Joined: May 2009
Posts: 44
Likes: 0
thanks for all the input guys, but im really just looking for better acceleration. mileage doesnt matter a whole lot, but im still taking it into consideration. so what would be the best acceleration without completely killing my mileage?
Postmaster
Joined: Jan 2009
Posts: 4,558
Likes: 2
26in tires with 538 gears should give you some good acceleration to about 50mph which might be your top speed in OD... LOL ...With 30in tires i would go with the 355 to unless your planing on using biger tires . You could go 373s but i dont think you will feel that much difference . It all depends on how much you want to spin the rpm on a 4.9 .. Lew
Thread Starter
|
Freshman User
Joined: May 2009
Posts: 44
Likes: 0
thats one thing i was thinkin about today, i have a 2.73 right now and drive a manual. i dont know what a higher gear set would do to my rpms. ive decieded not to go 4.10 im kind of leaning towards 3.73 or 3.55. is there that big of a difference between the two?
Cargo Master
Joined: Jun 2002
Posts: 2,033
Likes: 32
From: Aurora,Colorado
The 2.73 should get you around 1700RPM @ 60MPH and a 4.10 badboy should get you around 2150RPM@ 60MPH.