ERT

I just got a 2014 JKUR , automatic. It doesn't show the 4:10 option. I calculated the engine rpms with 4:10s @ 70mph on grimmjeepers site. It was 2497rpms. My real world #s on mine was 2500rpms.*
Are you spinning 2500rpms @ 70mph also?

jadmt

I was with stock tires on my 2014 rubicon. lower now with 34's.

ERT

Do you have an automatic or manual? If you have an automatic, l may have gotten lucky and received 4:10s.

jadmt

auto and have 4.10's for sure.

ERT

Thank you for your help. I guess I got lucky. Got 4:10s without them being ordered.

LARK

I have a 2014 JKURX with the auto as well. With the auto 4.10s are a $400+ option and will definitely show on the sticker. I have 4:10s in my Jeep and it turns about 2650 at 70 mph. The tach needle is at the very top of the green Eco range. I'd say you've got 3:73s.

ERT

That's what I was afraid of. I wanted the Rubicon for all its extra off-road features. I thought 4:10s were part of the Rubicon package. My fault for not doing the research.

Thank you for your input.

H8MUD

You should be able to find your gear ratio by entering your VIN on this site.

https://customerconnect.custhelp.com...50Z2dGbA%3D%3D

Jeepstin12

same here for the RPMs, running 4:10 & 35's

jadmt

you know I need to take this back as I replaced the bfg stock tires right from the get go, same day I bought it with 285/70-17's so that would have been why I was at 2500rpm at 70.