I'm going to do my ball joints soon but want to start ordering stuff for them. I'm looking at ordering everything from RockAuto but they have 2 different Moog UCAs. RK series Model #s RK80308 $42.79 and RK80306 $41.99 and CK series part #s CK80308 $62.79 and CK80306 $62.79 what's the difference between the RK and CK? Thanks!

 

What year, and 2wd or 4wd? Do you have the payload package?

The RK series from the product description are alternate OEM parts. The CK series are the "Problem Solver" series that include grease fittings. I would NOT use anything but the Problem Solvers. Period. Better construction and serviceability.

 

Whatever the "problem solver" ones are. They're probably the more expensive ones, but worth it.

 

x3 on problem solver. Grease serviceable will never need replaced again when maintained.