I everyone I'm looking into the rough country 4" long arm kit on my 2008 JK Rubicon and 37 or 35 with the proper gearing. My question is will the stock axles on the Rubicon hold up to 37?
Any advice would be much appreciated.

 

I blew up the front axle and bent a rear with the stock 32's. It really depends on how hard the obstacles are you are willing to go for.

 

99.9% of ppl with be fine with the Dana 44's and 37's. Make sure u gusset the c's with 37's. And maybe sleeve it

 

my 38X14.5 are still running strong on my stock 44s so you'll be fine unless you act like your jeep is a rock bouncer...

 

Thank y'all for the info looks like 37 13.50 it is

 

Im still running my stock 4:10 because once you go 5:13 or higher the ring gear and pinion gets smaller and weaker...

*only mentioned this because you talked about gearing above*

 

Very few people break ring and pinion due to the gear ratio. Running proper gearing will releive the stress off the entire drivetrain and will allow you to go slower thru more techinical driving.

 

With running 37 with the automatic I am going with 5:38. I learned with my last truck that gearing is very important

 

I would replace the rear factory axles with cromoly shafts as the factory ones are famous for breaking right at the splines.

 

even with 35 I would suggest to replace axles with cromoly ones, put inner sleeves and C gussets. a Rubicon axle is not stronger than any other stock JK axle and they are weak for tires above 35''

somes will say that stock axles are fine with 35 or 37 but the driver and purpose might be a limiting factor.