Gear Question

mastertug · #1 (**permalink**) 10-04-2009, 06:21 PM

I recently bought a new to me 2003 7.3 F-250. The guy I bought the truck from had the gears changed to 4.10's. Would it be to my benefit to change the gears back to stock if I wanted to get the best gas mileage possible? The truck has a 6inch lift with 35 inch tires. Or what would be the best setup for maximum fuel economy? Any help would be greatly appreciated since I am new to the diesel community. Thanks!!

Dietoremain · #2 (**permalink**) 10-04-2009, 06:47 PM

The different gears are to account for the tire size. if you went to stock you'd feel like you had no power and eat even more diesel..

mastertug · #3 (**permalink**) 10-04-2009, 09:29 PM

Thanks for the fast response!

layson · #4 (**permalink**) 10-05-2009, 10:51 AM

Stick some 37's on there...

I don't know if it would be worth it to spend the money to change to 3.73's.

mastertug · #5 (**permalink**) 10-05-2009, 02:01 PM

That was another thought that I had. Looking to buy a chip very soon which should help with the fuel mileage a little bit. Just wanted to know if there would be a big difference between the stock gears vs. the 4.10's

layson · #6 (**permalink**) 10-05-2009, 02:23 PM

No not a big difference..

mastertug · #7 (**permalink**) 10-05-2009, 04:13 PM

Good to hear thanks for the input!

layson · #8 (**permalink**) 10-05-2009, 07:09 PM

Just means you are all set up for 37's now

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Powerstroke.org Advertisement