This got kind of entertaining.....
Most definitely lift kits and over sized tires change the geometry of the truck and adds increase wear on hard parts. The biggest mistake people make with oversized tires that increases the wear on hard parts is turning the wheel when the tires are not moving. This causes enormous increased stress on the ball's and axle shaft U's, let alone the steering parts.
For the guy who has the issues with '05 from Rairdon's........if you choose to keep that truck, throw that Fab Tech kit in the dumpster and get yourself a BDS long arm kit. This is a good start to fixing the all kinds of jacked up geometry that a Fab Tech kit puts you through.
U-joints and ball joints. Nah, you don't need to blow the coin on Carli parts. Buy yourself a good set of Spicer HD greaseable joints and call it a day. Ball joints are different story. The lowers we are all screwed. Can't get a u-joint with a zirk on it since the axle shaft joint will hit the lower ball's zirk. The only way around this is spend the hour per side and pull the axle's, remove the bolt that plugs the zirk hole and drop your zirk in and squeeze some grease in. Do this every 15-20k and you'll get a whole lot more life out of the lower ball's. The upper ball's will accept the zirk.
The other thing to consider with lifted trucks also is the carrier bearing angle. There is a specific range of degrees on that bearing, which I cannot remember what it is. But basically if you have a 6" lift, your looking at adding a 2" spacer to correct the carrier angle.
