can't forget about the good ole' 4.88 gear set

 

I have had the same luck as the other poster. While labor is the same the 4.10 gears themselves are more because you can't find them aftermarket only Dana spicer so you pay more. I believe they are probably better but just the same they are more money.

 

I was trying to keep the rpm's lower but it sounds like that won't be possible. I guess too much tire to keep going. Thanks for your input.

 

I would go with the 4.10's as well. Even if they made a 3.92 for the D44, the difference between it and the 4.10's would be negligible.

 

They're was about 100 rpm difference between the 3.92 and 4.10. Would that 100rpm cause much of in mpg loss? Drive about 25 miles (round trip) to work highway and at the times I go, there isn't traffic. If there is only a maybe 1 mpg difference I'm not concerned, but 2+ is a little different.

Still learning how everything works together but from what I have learned I'm impressed at the mpg these things are getting.

 

Honestly no. I doubt you would see enough difference in fuel economy between the two to really even notice.

 

Keep in mind that when you calculate the exact ratio to factory and you show in between two popular sizes always go to the lower gear set. With larger tires you add to the rolling mass and drag. Even more wind resistance when you lift. The lower gear set will help compensate for this and help keep the original feel and performance. If everything is calculated in for 35's depending on the set up you will come in around the 4.10 and 4.27 which is why most people select 4.10 - 4.56. You will find people with both that are very happy with their setup.

 

It won't happen at first, but I would like to put flats on or trim my fenders with a 2.5. That dramatically increases drag from what I have read because of how much it opens up the front end. With extra drag from flat fenders (did not think to compensate for extra drag), should I start thinking about 4.56? Sorry this turning into another thread to add to the thousands about "which gear do I need."

 

IMHO yes if you will eventually be going all out I think 4.56 might be better but also consider if you need to do all those mods. What if you go 4.56 and don't do as much as you thought you would. With teeny flares and big wheels stuff gets thrown up on the Jeep. Constant washing and lots of scratches. Most people would agree that ideally you would want to only regear once because of cost. If you went 4.10 while it was closer to stock you would probably be fine but might be disappointed when its modded with bumpers and winch and gear and .... I would consider as many aspects of what I wanted to do with my Jeep as I could and evaluate the reality of how it will be effected negatively. With 35's it's generally a 4.10-4.56 choice.

 

Ok so I have crappy 3:21's and am thinking of going to 35's but my initial goal is to add at least one licker and regearing at the same time...

If I regear to 4:10's with my 285/75/17's is it going to totally suck till I put on 35's?

Matthew