Well, By the end of Jan, My trucks gonna be runnin on 35's. I know i'm gonna have to regear due to the mileage on my truck and such. 4x4 im gonna probably need to do both diffs. Question is, what do you guys prefer to run on 35's 4.56's or 4.88? Im looking for it to be almost back to stock, take off, highway, daily driving and such.

 

I don't think it's necessary to go more than 4.56 for 35's. I'm running that and the truck feels fine -- especially with an auto tranny (which gives you the torque converter multiplication). I have a 3.0, so I'm no "powerhouse", lol. I think 4.88's would be better for a dedicated wheeling truck -- but 4.56 if it's your daily driver.

My .02

 

ya that's what I was thinking john, but once i decide to make my truck into an 80% offroad 20% onroad, im gonna throw a currie 9" 4 linked in the rear with possibly 4.88's im hoping. Thanks john, your the guy I hoped to hear from!

 

Hey, you'll be able to drive it with ANYTHING in it. Look at it this way: 4.88 isn't even 10% more than the 4.56 ratio. You can CERTAINLY run 10% more RPM's since getting "great" mileage (an oxymoron for most of our trucks...) won't be important with the kind of use you're citing.

So, for a "nearly" dedicated vehicle, go for the 4.88's! (changed my mind that quick -- but it was based on what you said...)

If you do the install, and the 9" has c-clip axles, make sure you pay attention to install instructions carefully. 4.88's have EXTREMELY thick ring gears and the center pin of the differential can have a problem clearing it. I had that with my 4.56 and didn't address it which meant taking the ring gear back off to address it. Don't be me!

Edit: Nevermind. NO WAY can a 9" have c-clips because of the way it's assembled. It would have to be a full floating axle, I would think.

 

4.88s, im gonna run 4.56s with 33s, i say 4.88s with 35s

 

I have 4.88s/35s/5 speed... and its pretty close.. a little shorter than stock, but helps to push the big tires. 3200 rpm/87 mph...

 

the 3.0 and 2.3 guys should run about 4.88s, but for 4.0s the close-to-stock feel you should run 4.56s. After calculation, the actual gear ratio needs for 35s is about 4.53 for me since I run a 3.55 with 27.4 inch tall tires now. You can search for the calulators online easily, but since I dont know what gears you have now or what engine, I cant punch the numbers for you.