Gears ?'s

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Old 01-31-2008, 04:08 PM
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Gears ?'s

Has anyone one on this site installed their own gears? I would like to upgrade to 456's. Is the install that difficult, is their any right up's on doing it and what is the best brand and place to buy them from? Guys around here wanting about 2500 to do the job and I think that is a little steep.
 
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Old 01-31-2008, 04:16 PM
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I did it on mine. It was pretty easy. Upside? money. It only cost me about $650 or so with fluids.

I have pics and could help you somewhat with any problems you have.
I wouldn't do it if that's your only mode of transportation though incase you run into trouble.

I'm trying to think what is the most difficult part about it. Probably setting the torque on the pinion is the hardest thing to do.

I had help from a buddy that works at ford but I'm sure you could do it with help from us on this site if you have the time.

PS I have a set of 456's for the rear of your truck if you have the 9.75 ring.
cheap.
 
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Old 01-31-2008, 04:23 PM
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Hey efuehrin... Nice pic!! Well... I dig both your trucks!!
But action pics ROCK!!!

I also have a gear ?... Have an 06 150 with stock 3.73 gears!
Lifting the truck etc... etc... Want to run 35x13.50x20's

? is will my stock 3.73's be ok to turn the 35's??

I mostly drive on the road. But I do tow a boat about 60 miles at a time.
Been stuck off road one to many times.
Probally cause I didn't have big enough gears in my last trucks... lol
 
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Old 01-31-2008, 04:24 PM
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oh yea and you will need to somehow be able to press off the old and on the new pinion bearings.

heres the pics I was talking about

https://www.f150online.com/galleries....cfm?num=13919
 
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Old 01-31-2008, 04:28 PM
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Originally Posted by Mr. eXtreme
Hey efuehrin... Nice pic!! Well... I dig both your trucks!!
But action pics ROCK!!!

I also have a gear ?... Have an 06 150 with stock 3.73 gears!
Lifting the truck etc... etc... Want to run 35x13.50x20's

? is will my stock 3.73's be ok to turn the 35's??


I mostly drive on the road. But I do tow a boat about 60 miles at a time.
Been stuck off road one to many times.
Probally cause I didn't have big enough gears in my last trucks... lol
Thanks for the compliment!
I also had 3:73's in stock. it was a dog. I gained a couple of MPG's with the new gears. 4:56's would be perfect for ya. I only have 4:88's cause I may go up to 38's someday and this isn't my daily driver. and like I said I have some for sale cheap! check out my gallery.
 
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Old 01-31-2008, 04:57 PM
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Originally Posted by efuehrin
Thanks for the compliment!
I also had 3:73's in stock. it was a dog. I gained a couple of MPG's with the new gears. 4:56's would be perfect for ya. I only have 4:88's cause I may go up to 38's someday and this isn't my daily driver. and like I said I have some for sale cheap! check out my gallery.
Thanks for the heads up MAN
You said you gained a couple MPG going to 4.56's with your 35's...
Forgive me but I thought bigger gearing ment lower MPG??
Or is it that bigger tires lowers the gear ratio =ing more pedal to get movin...
I'll hold off on those gears for now. I still need to find my lift.
 
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Old 01-31-2008, 05:12 PM
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extreme,

Ya the lower the gears the higher your RPM's...but with the 35's on, the truck is always working harder to maintain speed so the regear made it easier on the motor......which = more mpg.
 

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Old 01-31-2008, 05:15 PM
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Originally Posted by Mr. eXtreme
Thanks for the heads up MAN
You said you gained a couple MPG going to 4.56's with your 35's...
Forgive me but I thought bigger gearing ment lower MPG??
Or is it that bigger tires lowers the gear ratio =ing more pedal to get movin...
I'll hold off on those gears for now. I still need to find my lift.

Gears make your truck more efficient. When you lift it you kill the mpg's due to wind resistance. On top of that your truck will work harder to turn the tires.
Example:
Stock: 14mpg city, 18 mpg highway (this is what we are listed at by mfg.)

Lifted, with stock gears: maybe 10 mpg city, probably 20 mpg on highway if it is flat. If you hit hills, your highway mpg gets killed as your truck struggles to make it up hills.

Lifted with 4.88's: 14 mpg city, maybe 10 highway. My truck has no problem around town. The engine doesnt have to work that hard to move the tires at city speeds. My highway mpg has gone down because my rpms are higher.

Think of it like riding a bike.( you had the right idea) With big tires and stock gears, you are pedaling with the really tiny gears. Its really hard to move the bike and your legs start to hurt. When you swap to taller gears, its like pedalling with the big gears, really easy to get moving, but you have to pedal really fast to keep moving at high speeds (hence higher rpms on the highway)
 
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Old 01-31-2008, 05:20 PM
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not sure about city vs hwy mpg. i've never checked the difference.

alll I know is that I was averaging 10-11 with stock gears and lift and 35's

now i get 12.5-13.5 or so with new gears
 
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Old 01-31-2008, 05:23 PM
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Originally Posted by tnsilverfx4
Gears make your truck more efficient. When you lift it you kill the mpg's due to wind resistance. On top of that your truck will work harder to turn the tires.
Example:
Stock: 14mpg city, 18 mpg highway (this is what we are listed at by mfg.)

Lifted, with stock gears: maybe 10 mpg city, probably 20 mpg on highway if it is flat. If you hit hills, your highway mpg gets killed as your truck struggles to make it up hills.

Lifted with 4.88's: 14 mpg city, maybe 10 highway. My truck has no problem around town. The engine doesnt have to work that hard to move the tires at city speeds. My highway mpg has gone down because my rpms are higher.

Think of it like riding a bike.( you had the right idea) With big tires and stock gears, you are pedaling with the really tiny gears. Its really hard to move the bike and your legs start to hurt. When you swap to taller gears, its like pedalling with the big gears, really easy to get moving, but you have to pedal really fast to keep moving at high speeds (hence higher rpms on the highway)
Well that explaines it!! VERY WELL!! Thanks
NIce RiG BTW...
 
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Old 01-31-2008, 05:23 PM
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If i had known you were responding, I wouldnt have written a book, Lol

It depends on the highway speed. I go 80, so my highway mpgs stink. I get just about stock city mpg with 4.88's, 35's, and lift
 
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Old 01-31-2008, 05:26 PM
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Originally Posted by tnsilverfx4
If i had known you were responding, I wouldnt have written a book, Lol

It depends on the highway speed. I go 80, so my highway mpgs stink. I get just about stock city mpg with 4.88's, 35's, and lift

ha..ha ya darn work got in the way of me replying. I always tell them not to bother me when i''m in the middle of a post!
 
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Old 01-31-2008, 05:27 PM
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Glad to see someone else maximizes their work efficiency/ sanity during the work day on here

I get a paycheck to post in here right? and do work in my free time?
 
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Old 01-31-2008, 05:30 PM
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Originally Posted by tnsilverfx4
Glad to see someone else maximizes their work efficiency/ sanity during the work day on here

I get a paycheck to post in here right? and do work in my free time?

right...get paid to post here during the day
and work in my free time(on my truck)!
 
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Old 01-31-2008, 05:49 PM
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Originally Posted by efuehrin
right...get paid to post here during the day
and work in my free time(on my truck)!

SO I'm NOT the only ONE!!
Time for those now... Back to WORK tomorrow...
 


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