I have a 2017 jk automatic with 3.21 gears. I’m wanting to run 4.11 and 35’s and I run interstate a lot so I need to keep the top end. Is anyone running 35s that runs interstate a lot
I have a 17 Rubicon Recon with 4.10 gears, 35's and drive 50 miles on the interstate every day. What questions do you have?I have a 2017 jk automatic with 3.21 gears. I’m wanting to run 4.11 and 35’s and I run interstate a lot so I need to keep the top end. Is anyone running 35s that runs interstate a lot
If it's an automatic, you'll ideally want 4.56 gears. 4.10 isn't bad at all on the highway with 35s, but 4.56 is perfect.
Thanks for the views. Calculations are great but don’t always equal reality.Mine performs great. However I will say I am stock. I have Mopar hightop fenders that allow me to run "35s" on stock rubicon suspension.
I have plenty of get up and go, i can beat some cars off the line if i want to floor it. I have never thought "man, i wish i had more get up and go"
Running at 70 it stays at around 2500 rpm. My only complaint is of course MPG. I get significantly better MPG in the city than the highway. 16 highway and 19 city.
I imagine with other gears you can remedy this, but the cost for me would outweigh the gas savings and its a jeeps so its whatever.
All in all, I personally have no issues with my 4.10s.
He is doing 2500 rpm on the hiway at 70 with 410s
That’s about perfect.
You don’t want to be running down the hiway at 2800 all day long
I’m looking at 315s. Like you said close enough.Interesting, with 4.10s on my 2016 Rubicon I am at about 2200 at 70 MPH on the highway.
That's on 315s, but close enough.
I still stand by my recommendation of 4.56 for 35s personally. I consider 2500-3000 RPM to be the engine sweet spot. So he's at the lower end, so at this point it's just up to personal preference. I'd rather be around 2800 personally.
If it's an automatic, you'll ideally want 4.56 gears. 4.10 isn't bad at all on the highway with 35s, but 4.56 is perfect.
I’m looking at 315s. Like you said close enough.
What about Yukon gears? Anyone have experience with any particular brands good or bad?
Yep, if you're running 315s, 4.10s are close enough. I would consider 4.56 to be "perfect", but I also wouldn't waste the time and money going from 4.10 to 4.56, as it's not enough to make a huge difference (as oppose to going from 3.21 to 4.56 for instance).
My 2016 Rubicon with 315s and factory 4.10s does highways at 70+ just fine with no complaints. If I was putting in new axles, I would re-gear to 4.56 at the same time, but for right now, it would be a waste.
They crack every time?Best gears, bar none.
I’ve installed several different brands, and Yukon gears set up on the first crack almost every time.
I don’t buy anything BUT Yukon gears and axles
That's on 315s, but close enough.
Ok new question. I have stock 3.21 gears in a next gen dana30 front and dana44hd rear. Looking to regear for 35’s most likely 4.56. It’s a daily driver and I drive long trips on interstate at around 70mph less than 1500lbs towing. When I tow. I want to off-road from time to time I took it pure stock up Dutch John at Uwharrie so I know how to drive , I just want to lift it for bigger tires for better traction and less undercarriage damage. Suggestions and recommendations welcome. Do I need to change the stock axels if I regear. Is it worth the money to get lockers when my crawling is only 15% of my total use.