chewy22

On my 14 275/70 18s I lost ~2. That was after recalibrating speedo for the larger tire. Would thinks it’s close to the same for both sizes. I really like the looks of the 275 but thinking of going to 285 on my next set. No room for chains with the 275s. But it’s hard to swallow the price difference between the two.

These are the better readylift kits. http://www.readylift.com/products/chevy/chevy-silverado-1500/4wd-complete-lift-systems.html Better then the 4" SST kits they offer.

The stock 18s on my Z71 offroad package are +24. It's stamped on the inside of the rim. I can take a pix when I get home. 2013s and older are +31 but the 14s are different, at least my wheels are and I've seen other posted pictures of the stamp on the inside of the wheel that says +24.

That is a great comparison and perspective T-Town. The problem is the wheel offset 0 vs the stock +24. The outer corner of the tire, when turned, is what hits my mud flap. I don't doubt 34s on a stock offset wheels clear all day long. If I had the same tire on my stock rims it would not come close to hitting. Have to really think about the offset when looking at aftermarket wheels.

Chevy 1500 - I have the same wheel size and offset/backspacing w/ 275/70R18 (specs 33.4 x 11) duratracs, 2.25 readylift leveling kit front (w/ 1 inch taller blocks in the back). Even though the specs on the tires are 33.4 as it sits with the pressure I'm running they have a ride height of 32.5 (I've confirmed this both with running a chalk line and line of sight measurement). I used that measurement (32.5) in the hypertech speedo calibrator and my speedometer is spot on with a GPS at all speeds. So that gives you a base line. At full lock my tires did touch the back lower corner of the wheel well liner. I pulled the liner back using a screw into the cab mount. Because I run a lot of gravel roads I need mud flaps. I put duraflaps on, both front and rears. The flaps are about a 1/4 to 1/3 inch thick. I created a channel in the flaps for the black plastic things that are on the rear outer edge of the wheel wells so they sight as flush as possible. With just that small thickness of the flaps there was rubbing when turning on a slight incline/decline. A lot of modification to the front flaps to get rid of the rub for normal driving. I still get a small amount of rubbing when the tires are stuffed and turned, all on the flap. So long story short, there is not much clearance. Maybe the 1/4" height difference in the leveling kits will make a big enough difference for a 34x11.5 tire but it will be damn close and I bet you'll have rubbing issues with a 0 offset wheel.

Your speedo and odometer are off approximately 5.2% with that tall of a tire which throws off the DIC mileage calculator. Hand calc your mileage, DIC mileage x 5.2% divided by gallons used. Or get a hypertech speedo adjuster that updates your computer (speedo/odom) for the new tire size. It is super easy to do. Your tire width/tread and wheel size are all killers on mileage too. 20 rims are heavy. Once I drive my truck more ill post up mileage, I have 275/70 (33.4x11) 18s, and used a hypertech to correct speedo.

Make sure everything is torqued correctly and also check to see if the lower bolt is hitting your drive shaft, check both sides.

I have 2.25 ready lift, with 275/70 18 duratrac (33.4x11) on 18x9 moto metal wheels with zero offset. I ended up pulling bkac the back corners of the wheel well liners. Slightly touched. 2500 basically have a 1+ inch factory body lift compared to the1500s.

Are your tires 275s or 295s? They look a lot bigger then 33s but I guess the 275 trail is 33.6.

Mine is a Silverado LT Z71 CC with steel control arms. Bought last august, so assuming it was one of the early runs.

Mine is a Z71 crew cab and it has steel control arms. This has not been mentioned yet but there is two different lengths of rancho front struts. Look at readlifts website, they give you a bunch of info about this. I've seen it on the local dealers lot. Two stock Z71s sitting side by side and one visibly sat higher in the front. Whipped out the tape and sure enough, some trucks have a 2.5" rack and some only have a 1"+ rack (extended length strut). There was no spacer/leveling kit on the truck that sat higher in the front. You need to measure your stock rack before ordering a level kit.

What is your wheel offset? Truck looks good.

Don't get brownstone, horrible color!!!!!!!! Because the less of them on the road, the better mine looks.................

What size tires and lift? Wheel offset? Looks great!