As for Mud terrains, it seems the KM2's are possibly the lightest. Anyone running or know anyone running these tires in 37" or 38" on stock Rubicon axles without any re-enforcement?

 

Guys have bent the axle housing with stock tires. If you are going to go off road at all, you'd be playing with fire not sleeving and gusseting. 38x14.50 would almost guarantee it.

It's not just tire weight, but the increased traction.

 

So ya think a sleeve and gusset front axle would put me in the safe zone? I do offroad, little bit off everything here. Crawling, mud, trails.

Another question on this topic. Everyone talks about strengthening the front axle. How come there's no talk on the rear axle? The same size tire is back there.

 

The km2 are light because they are small and the sidewalls are thinner. The rear axle is not as delicate as the front because there aren't any steering components flexing everything left and right. Also the diff is centered. sent from my work leash

 

Sleeve and gusset really is a must. Just not worth risking it. Unless you really want a Prorock and are just waiting for a reason to pull the trigger.

Beyond that, your ball joints will go at some point. May as well toss some Synergy joints in when the gussets are done and everything is apart.

Lastly, if your playing in mud, the stock axle shafts probably won't last long. Shafts come out for sleeves. Good time to upgrade.

Again, you can risk it and people do. I've also seen the carnage when things do go. 37s/38s are a lot of tire.