So I have an 04 5.4, 2wd

I would like to upgrade my rears from 3.55 to 4.11, I run 275/65/18, I am getting them because I would like a little help with stop and go traffic, better acceleration, and I would like to do a little mud riding.

I do not know what a good set would be, or really where to begin, or how much a shop will charge to install. Any help would be appreciated. The front axle is 8.8 and rear is 9.75 correct?

 

Pics....

I've never heard of a 375 wide tire.

Also, search around here. Hundreds of threads about regearing

 

Sorry, I meant 275.
I did search, I always search before asking something. No one has mentioned anything for a 2wd. Everyone talks about their 4WD when regearing...

 

Install runs around 300-400 bucks. I got a quote for $1400 at 4Wheel parts and it includes 4.10 gear and pinion, Eaton locker and install for a 2wd

 

Cool, I really wanted to make it an LSD. I was hoping to get all of the parts for about 400-500... I've seen the 4.11 ring and pinion Ford for 150-200.

I guess that eaton locker is expensive... what spline do I need to look for?

 

Yes the locker is like 500-800 bucks

 

http://www.diffsonly.com/

 

My axle code is H9. Which means I have the 3.55LS. The LS isn't bad, is it still recommended I go ahead and get a new eaton locker? WOuld save me some money and I could go ahead and get the 4.11s today if so and hopefully have em installed within a week or 2! But, if I need the new eaton, then it may take a bit longer to save up that kinda cash

 

Just an update on pricing. Been calling around for a week now. I am getting $450-600 for an install and them providing the oil and additive.

I went ahead and got the Yukon 4.11