4.10 GEARS TO 3.73 OR 3.54

[JER-1]

Any opinons if I take my 4.10 to 3.73 or 3.54 gears have to change front and back pain but lower rpms I hope would much increase mpg.???
Anyone know of a 2 speed rear end for this 2005 f-350 dully maybe have the 4.10 for towing and 3.73 or 3.54 gears for everday drivin.???
Jer-1

[Quickerthanu]

Originally Posted by JER-1

Anyone know of a 2 speed rear end for this 2005 f-350 dully maybe have the 4.10 for towing and 3.73 or 3.54 gears for everday drivin.???
Jer-1

A 2 speed rear gear would be awesome!!....but I have never heard of such a beast for a truck this small.


I do know that gearvendors sells a double OD option.....but don't think it will work on our 4x4's tho.

GearVendors

[BennyLumpkin]

you can make the gearvendors OD work...you just cant run it in 4 wheel.....either way it just goes behind your trans, or in this case the transfer case.

[TurboSevenThree]

Originally Posted by JER-1

Any opinons if I take my 4.10 to 3.73 or 3.54 gears have to change front and back pain but lower rpms I hope would much increase mpg.???
Anyone know of a 2 speed rear end for this 2005 f-350 dully maybe have the 4.10 for towing and 3.73 or 3.54 gears for everday drivin.???
Jer-1

you're a freakin genius. Patent it!

[chipster]

fixing to drop some 3.73 in my 99... i will let you know how it turns out. There is already a pretty good discussion for the same subject lower down the page on 7.3 drivetrain section. Got me some Yukon 3.73 gears for 350 bucks. I have heard of people doing 3.73 in rear and leaving 4.10 in front. just make sure you dont run it on hard surface like that.

[cowboyf250]

you shouldnt run two diff. gears in a 4wd. it will **** up the transfer case