I've got a 2010 F150 4x4 with 3.55 gears. I have 34.5"x12" M/T tires and I want a 4.10 gear. Any suggestions on what brand and how much this will cost to install?

 

Be prepared for your MPG's to go down!

Id recommend only FRPP/REM gears with there new Isotropic Superfinish...
benefits:

•Increased Speed
•Less Fuel Consumption
•Increased Durability
•Cooler Operating Temperatures
•Reduced Surface Micro Pitting
•Increased Power Output
•Increased Power Density
•Lower Operating Costs
•Reduced Vibration
•Reduced Noise
•Less Wear

 

thanks. how much is my mpg gonna drop? and is it easy to put those gears in wrong? (im not gonna do it myself)

 

^^^

https://www.f150online.com/forums/ar...p-rev-1-a.html


MGD

 

Its very easy to do gears wrong, I think 4:10s with that size tire is a great idea, you're revs will be slightly higher at highway speeds is all but with that size tire and those gears it will make it close to stock. Check out http://www.ringpinion.com/ for parts

 

Yukon gears for the win! Haven't had aproblem with them at all. Wayne over at diffsonly.com offers great prices and great service.

 

I went from 3.55 to 4.10 on 31.6" tires and my city mpg improved, while highway mpg went down slightly (only 1 mpg).

 

You might see a MPG increase just from the motor not working as hard to turn the wheels. 3.55 with those tires I am sure your truck is working pretty hard compared to what it had stock. I ran 4.56 in my old truck and saw an MPG increase solely because the dealer put 35's on a truck equipped with 3.31's >.<

 

Any ideas on the labor cost for front and rear?

 

I just had mine done, along with all new bearings (including outer axle) and my LS rebulit for less than 2 grand. Mine were done by East Coast Gear Supply here in NC. They used Nitro gears. So far I am very happy. Highway mileage was a wash, if I stay below 70 mph, and around town picked up about 1 to 2 mph. You can check their website for pricing, you will need gears and install kits for both ends. I woul definitely reccomend having them professionally installed. I used to do 9" rears for my Mustang, but really didn't have the time to do these.

 

Yukon gears from Wayne at diffsonly.com is the way to go, saved me nearly $500 in a bundle deal for 2 sets of gears and install kits. Just give him a call (ignore their website posted prices).

~$400 per diff is typical pricing on install. It needs to be done right, take it to a drive-line shop that specializes in these installs.