On my old Toyota I switched to the manual hubs, I noticed a big difference with free'd up power and economy (v-6 dog) and I would do it on my dodge to save the drive train motion, But not for 1800.00. 600 orless and I am sold as a upgrade. Call around to local 4x4 shops.

 

Parts alone would be over $600.

 

I personally still think it is worth it if you have the money sitting around.