A lot of guys lift their rigs only halfway and never do the UCA's (guilty!!) so there's really a lack of overall honest comparison. I leveled my Tundra 6 years and 100k miles ago before replacing the blown and NOT-SO-REBUILDABLE Bilstein 6112's. The unpredictably darty and boaty-handling of crappy castor angles really presented itself, however, in between this most recent +1" (3.5" total) Coilover replacement and the UCA/Tire swap and alignment. Digging into the internet for a refresh in "Racecar Basics 101", revealed the fact I'd been driving a great, but still unpredictably handling truck from coast to coast to coast for the last six years. Yeah, no, not anymore... Sometimes, when it's done all the way right, you learn you've been doing it kind if all wrong; so the moral here is don't be an a**hole truckbro and actually build your Trusty Steed to be trusty in all things, particulary HANDLING. We spend thousands on suspension and tires only to shortchange ourselves out of a great ride by being cheap, lazy, or both; never correcting the terrible geometry. I've done it. Finally. And my left leg is stretched back six years, thoroughly kicking my right a**cheek... Besides a Hellwig rear swaybar, new JBA UCA's are dollar-for-dollar, THEE BEST money I've spent on this truck in 7 years. I now have a 4x4 pickup that rides like a Cadillac, corners like a Corvette, and looks basically stock - minus the red glow from under up front. Don't be me. Don't waste time and money going halfway. Buy these and put them on in an afternoon with a buddy. Dipsh!t Tip: We did the tie rods/ends at the same time, because torch... Which made it easy for us and the following alignment tech to achieve the absolute best results.