35 Spline Vs 30 Spline axles?

[Mkp08]

So my question is 35 Spline Vs 30 Spline axles? My rig is a daily driver weekend crawler any advise.

 

[wayoflife]

Bigger is better and 35 splines will be a stronger shaft than 30. That being said, you will need a carrier or locker that is made to accommodate it.

 

[DGP]

If you have plans to change your carrier and I'm assuming gears as well then it would be time to step up to 35 spline. But this is a expensive endeavor for a "weekend crawler". I think you need to calculate the cost of replacing your carrier and axles and see if your amount of "crawling" justifies the expense.