My Dodge 2500 4X4 Diesel with 100K miles on the clock was in the need of front ball joints, u-joints and brake pads. I was intriguedÂ by all the conversation on the various Dodge Diesel forums about the unit bearings failing and the expense to replace. So I did some research and found three companies offering a Free Wheeling, Locking Hubs kit for our trucks. Dyna Track, SpynTec and EMS Off Road.Â I called Tom Brister at EMS Off RoadÂ Â http://www.emsoffroad.com/store/ to discuss my options. He assured me that all the kits were well made, but their kit was a few dollars less and used off the shelf bearings that could easily be replaced in an emergency. Although all three kits were back ordered at all vendors I checked, Tom said he could have a kit to me in a week so I ordered it up along with a set of non greasable U-Joints. At the time of this article, the kit cost $1495 and the two U-Joints were $110. Shipping from PA to MA was $60. Total $1665.00. The only other item I needed to purchase was high temperature wheel bearing grease and a bearing packer device. The grease was $12 and the bearing packer was $8.