So while rounding up parts and fluids to do my t-case/trans swap I thought maybe I should swap out the u-joints even though they are "new" (replaced less then a year ago) and I came across a few things. ONE did Moog merge with or buy out a company call Precision? At the parts store that USED to carry Moog (which the current personal swear never happened ) offer Precision. Rock Auto has parts listed as Moog/Precision. and TWO: some U-joints are as much as forty FWONKIN' dollars at the parts store because they are specially coated for aluminum drive shafts. When the fwonk did that become an issue. I've had the same aluminum driveshaft in the same '02 Silvy (which is from the factory) and NEVER had that question asked nor presented as an option/problem fixer. So is this "legit" or did they rub snake oil on it to jack up the price? I also have a "hi-bred" u-joint in that the yoke on the rear end and drive shaft are different (3/4 ton rear end) so I bought the 2 (at the time 2 options) and swapped 2 of the caps. I HOPE I can find the boxes and part #s to order from Rock Auto. MUCH cheaper. Of course they weren't specially coated for aluminum drive shafts. Thanks for any insight on these.