MBSierra17

There aren't many lifts (that aren't actually just levels) at that height. You probably won't find anything comparable in cost either. Next step, at that height you want, would probably be to compare the leveling blocks to a set of decent coil overs and replace rear shocks. The only real difference between either of those level type kits and a "lift" is going to be geometry correction for uca, CV, and mayhaps a diff drop. That said, 2.5" in most cases doesn't require those so it's rarely done.

Stock. +27. Mine were at max height. Point isn't can 275's fit, point is that 305's very likely won't since 275's are very hit or miss. Also depends on which UCAs though.

Ah, if only someone would make replica wheels with more accommodating offsets. Many like the stock wheels, especially the snowflakes. And your math works, but tire manufacturers aren't quite that precise. One brand 285 might be 283,whereas another might be 286. Then there's the difference in how aggressive the sidewall lugs are. Lots of variables.

Sidewall made contact with front arm of the UCA.

Can't cut out the suspension and sway bar. +27 with 305 wide, I'd bet you rub more on the inside than you do out.

Stock 20s rub on the front arm of the UCA's. I'm lifted now, so don't have that problem anymore, but with +12 or +20 you'd be fine with 275/60/20.

Maybe with spacers to offset, but not at +27. You'll probably just move the rub from UCA / sway bar to the fender though.

275/60/20 rubs with bilstein max height. Pretty sure 305 wide is gonna rub, even at 3rd setting.

You have to do an alignment either way. Bilstein 5100 or 6112 at anything other than stock height, or spacer, or eibach or anything that changes ride height.

Changing the preload will only affect ride height. With vehicle weight on the shocks, the spring will be at the same level of compression regardless.

Gotcha. So a BDS lift may have more trouble with bumper /fender clearance on -19 offset wheels since there's an additional negative "offset" inherent in the new knuckle. The extra 1" track width is roughly 26mm if I'm doing math right. So a -19 offset on a bracket lift would look like a +7 offset on a knuckle lift? I think? That said, I don't know what kind of suspension clearance issues you may run into with that offset on a 10" wide wheel...

Does the ready lift widen front track too? Just don't wanna overlook a variable.

No clue on ground clearance issues, but you'll want to check out custom offsets with that offset and 35s. I'd be concerned with hitting the bumper and fender that far out with 35s on a knuckle kit. I really like the assault wheel though. As soon as I can convince the wife they're necessary, they're going on my truck.

The brakes should clear down to 17", but with any knuckle lift the smaller the rim, the more limited you get in offsets that will clear the new knuckle.

What wheels? Looks awesome