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  #1  
Old 11-29-2010, 07:04 PM
RANGERDANGER17 RANGERDANGER17 is offline
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Default Swapping 4.10's to 4.56?

I currently just put a 3" body lift on my truck which already has a 4" suspension lift. I have 4.10 l/s gears and running 31's until i can get 33's. I'm currently getting 12.5-15 mpg.

I'm wondering if i would benefit from swapping them out for 4.56? Its my daily driver and I offroad and also tow a snowmobile trailer bout every other weekend.
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2003 Ford Ranger Fx4 OffRoad 4x4 4.0 L
4" Superlift suspension lift kit, 3" PA body lift, 33x12.5r15 Goodyear Wrangler Duratracs,15" AWC Soft 8 Black Steel Wheels,Superlift heavy duty front drive shaft,Cherry Bomb Glasspack Muffler Dumped, Air Box Mod, Blinker Mod,Temp. Gauge Color Mod, Custom Headache Rack, Custom Front Bumper
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  #2  
Old 11-29-2010, 07:06 PM
STL STL is offline
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Default Re: Swapping 4.10's to 4.56?

4.10 and 33" tires is a popular combo

Sure it isn't needing a tune up and filters replaced?
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  #3  
Old 11-29-2010, 07:08 PM
01_ranger_4x4 01_ranger_4x4 is offline
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Default Re: Swapping 4.10's to 4.56?

yes, you will benefit from swapping in 4:56's with 33's. besides having better acceleration and better gas mileage because the engine wont have to work as hard to move the truck it will also be better on your drive train, especially your transmission. gears are often the most overlooked factor when people put on larger tires but its easily the most important factor IMO.
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2001 Ranger 4x4 Stepside
-RCD Suspension lift
-33x12.5 BFG KM2's on Mickey Thomson classic locks
-4:56 gears
-Auburn gear LS
-James Duff traction bars
-Headers
-Flowmaster duals
-SCT X-Cal2 and some small exterior mods

http://www.cardomain.com/ride/2321189

2005 F-150 Lariat 4x4
-LED third brake light
-Weathertech floor liners
-Edge tuner
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  #4  
Old 11-29-2010, 07:09 PM
ben10 ben10 is offline
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Default Re: Swapping 4.10's to 4.56?

Quote:
Originally Posted by 01_ranger_4x4 View Post
yes, you will benefit from swapping in 4:56's with 33's. besides having better acceleration and better gas mileage because the engine wont have to work as hard to move the truck it will also be better on your drive train, especially your transmission. gears are often the most overlooked factor when people put on larger tires but its easily the most important factor IMO.
x2
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  #5  
Old 11-29-2010, 07:46 PM
RANGERDANGER17 RANGERDANGER17 is offline
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Default Re: Swapping 4.10's to 4.56?

well just replaced the air filter. Ha and probably could use a tune up what should i look at? like spark plugs and what else?
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2003 Ford Ranger Fx4 OffRoad 4x4 4.0 L
4" Superlift suspension lift kit, 3" PA body lift, 33x12.5r15 Goodyear Wrangler Duratracs,15" AWC Soft 8 Black Steel Wheels,Superlift heavy duty front drive shaft,Cherry Bomb Glasspack Muffler Dumped, Air Box Mod, Blinker Mod,Temp. Gauge Color Mod, Custom Headache Rack, Custom Front Bumper
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  #6  
Old 11-29-2010, 07:48 PM
01_ranger_4x4 01_ranger_4x4 is offline
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Default Re: Swapping 4.10's to 4.56?

Quote:
Originally Posted by RANGERDANGER17 View Post
well just replaced the air filter. Ha and probably could use a tune up what should i look at? like spark plugs and what else?
plugs, wires, fuel filter, clean MAF ect.
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2001 Ranger 4x4 Stepside
-RCD Suspension lift
-33x12.5 BFG KM2's on Mickey Thomson classic locks
-4:56 gears
-Auburn gear LS
-James Duff traction bars
-Headers
-Flowmaster duals
-SCT X-Cal2 and some small exterior mods

http://www.cardomain.com/ride/2321189

2005 F-150 Lariat 4x4
-LED third brake light
-Weathertech floor liners
-Edge tuner
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  #7  
Old 11-29-2010, 07:51 PM
RANGERDANGER17 RANGERDANGER17 is offline
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Default Re: Swapping 4.10's to 4.56?

Quote:
Originally Posted by 01_ranger_4x4 View Post
plugs, wires, fuel filter, clean MAF ect.
okay and some of those things will help with my mpg? And what mpg are you getting?
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2003 Ford Ranger Fx4 OffRoad 4x4 4.0 L
4" Superlift suspension lift kit, 3" PA body lift, 33x12.5r15 Goodyear Wrangler Duratracs,15" AWC Soft 8 Black Steel Wheels,Superlift heavy duty front drive shaft,Cherry Bomb Glasspack Muffler Dumped, Air Box Mod, Blinker Mod,Temp. Gauge Color Mod, Custom Headache Rack, Custom Front Bumper
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  #8  
Old 11-29-2010, 08:35 PM
pooleo pooleo is offline
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Default Re: Swapping 4.10's to 4.56?

maybe go to a 4.27 gear, then get a happy medium. The last thing you want is to be humming down the road ad 3.5k rpm! lol
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  #9  
Old 11-29-2010, 08:43 PM
01_ranger_4x4 01_ranger_4x4 is offline
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Default

Going from stock size tires with a 4:10 ratio to 33's and 4:56's will put the truck back almost to stock final drive ratio. I went from 4:10's to 4:56's when I went up to 33's and I run in the stock RPM ranges at cruising speed. The SOHC is more efficient in the higher RPM range anyways.

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2001 Ranger 4x4 Stepside
-RCD Suspension lift
-33x12.5 BFG KM2's on Mickey Thomson classic locks
-4:56 gears
-Auburn gear LS
-James Duff traction bars
-Headers
-Flowmaster duals
-SCT X-Cal2 and some small exterior mods

http://www.cardomain.com/ride/2321189

2005 F-150 Lariat 4x4
-LED third brake light
-Weathertech floor liners
-Edge tuner
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  #10  
Old 11-29-2010, 09:09 PM
DangerRanger379 DangerRanger379 is offline
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Default Re: Swapping 4.10's to 4.56?

what do you, or better yet, how do you swap gears?
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  #11  
Old 11-29-2010, 09:48 PM
StrokerScamp StrokerScamp is offline
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Default Re: Swapping 4.10's to 4.56?

Just put nitrous on it.
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  #12  
Old 11-29-2010, 10:44 PM
RANGERDANGER17 RANGERDANGER17 is offline
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Default Re: Swapping 4.10's to 4.56?

Quote:
Originally Posted by StrokerScamp View Post
Just put nitrous on it.
haha thats a idea! NOT!
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2003 Ford Ranger Fx4 OffRoad 4x4 4.0 L
4" Superlift suspension lift kit, 3" PA body lift, 33x12.5r15 Goodyear Wrangler Duratracs,15" AWC Soft 8 Black Steel Wheels,Superlift heavy duty front drive shaft,Cherry Bomb Glasspack Muffler Dumped, Air Box Mod, Blinker Mod,Temp. Gauge Color Mod, Custom Headache Rack, Custom Front Bumper

Last edited by RANGERDANGER17; 11-29-2010 at 11:01 PM.
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  #13  
Old 11-30-2010, 02:42 AM
STL STL is offline
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Default Re: Swapping 4.10's to 4.56?

Quote:
Originally Posted by RANGERDANGER17 View Post
okay and some of those things will help with my mpg? And what mpg are you getting?
I had 3.55 gears and put n 4.10 when i swapped for 31" tires.

I can get 18 city and 22 highway
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  #14  
Old 11-30-2010, 03:42 AM
ZWilson07 ZWilson07 is offline
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Default Re: Swapping 4.10's to 4.56?

I know many have said that the sohc does better at higher rpms, whats the best crusing highway rpm for best gas mileage. and my vote is to just save your money for now and see how the 4.10's do with the 33's. most say they are fine but worse comes to worse, if you dont like it than move up to 4.56's ya know.
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  #15  
Old 11-30-2010, 05:31 AM
DangerRanger379 DangerRanger379 is offline
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Default Re: Swapping 4.10's to 4.56?

Quote:
Originally Posted by Tfran71 View Post
simply take the old gears out and slide the new ones in
so this is a fairly easy project i can do in my driveway?
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2003 | XLT | Extended Cab | V6 | 4x4 | 4.0L SOHC | 3 Inch Body Lift | Cranked T-Bars | TJM Wench Bumper | Blacked Out Heads | Fog Light Mod | Surround Delete Mod | Blinker Mod | Custom Center Console | OHC | Pacer Bullet Rims | 33x12.5 All Terrains | 1 Inch Wheel Spacers
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