New to me 2003 F150 gears
11-18-2018, 08:28 PM
#1
Member
Thread Starter
New to me 2003 F150 gears
I bought it yesterday 126,000 miles was checking door sticker and find it has 410 gears. With the 5.4L engine how bad will my gas mileage be?
Any idea what a shop would charge to replace them?
Any idea what a shop would charge to replace them?
11-18-2018, 10:56 PM
#2
$250 gears
$250 bearing/shim kit
$500 labor
You can buy a lot of gas for $1000
11-19-2018, 08:20 AM
#3
Depends on your tire diameter. If you've got bigger than normal tires, the lower gear ratio offsets that. In general, 4.10 isn't that extreme, so you should get a balanced combination of low-end performance and mileage. You've got a towing monster ... I wouldn't change a thing. 
Here is a handy reference chart on tire size vs axle ratio.
Here is a handy reference chart on tire size vs axle ratio.
11-19-2018, 01:07 PM
#4
Senior Member
iTrader: (1)
What is your axle code? IIRC the only 4.10 equipped trucks were 2wd 7700 series variants.
Edit: It looks like thats exactly what you have. If you only do city driving keep the 4.10s. If you hit the interstate all the time then consider a swap. I would look at car-part.com for complete rear assemblies before I paid a shop to change gears on a 2wd.
Edit: It looks like thats exactly what you have. If you only do city driving keep the 4.10s. If you hit the interstate all the time then consider a swap. I would look at car-part.com for complete rear assemblies before I paid a shop to change gears on a 2wd.
Last edited by jprevat; 11-19-2018 at 01:11 PM.
11-19-2018, 05:34 PM
#5
Originally Posted by mbb
$1000 each end.
$250 gears
$250 bearing/shim kit
$500 labor
You can buy a lot of gas for $1000
$250 gears
$250 bearing/shim kit
$500 labor
You can buy a lot of gas for $1000
11-19-2018, 06:04 PM
#7
Senior Member
iTrader: (1)
Trending Topics
11-19-2018, 06:21 PM
#8
Now an XLT in Colorado
If you're in Colorado, I'll swap you my 3.55 rear end! 
(Then I'd only have to change gears in the front.)
I'd definitely keep the 4:10's if you plan to do any towing, and depending on your location (I suggest updating your profile to include this), you might want to keep them regardless. I live in the mountains, and with 32" tires, my truck constantly begs me to change. In any case, mbb is correct. $1000 buys a lot of fuel.
Welcome to the fray!
P.S. Regardless of gearing, you can most likely count on 13-16 average MPG.
P.P.S I just saw the pic in your other post. Looks like Florida, maybe? If so, you definitely don't *need* 4.10's for just driving around, but again, mbb's statement...
..
(Then I'd only have to change gears in the front.)I'd definitely keep the 4:10's if you plan to do any towing, and depending on your location (I suggest updating your profile to include this), you might want to keep them regardless. I live in the mountains, and with 32" tires, my truck constantly begs me to change. In any case, mbb is correct. $1000 buys a lot of fuel.
Welcome to the fray!
P.S. Regardless of gearing, you can most likely count on 13-16 average MPG.
P.P.S I just saw the pic in your other post. Looks like Florida, maybe? If so, you definitely don't *need* 4.10's for just driving around, but again, mbb's statement...
..
Last edited by OhioLariat; 11-19-2018 at 10:48 PM.
