KMK454

It's difficult... basically like a black truck.

You're right, I fixed my typos!

Out and about on new tires with a fresh wash. Debating on leaving it be or somehow leveling it... either up 1" in the front or 1" drop shackles. And maybe remove that Z71 sticker...

Thanks! I think they ride better due to having more sidewall; I only noticed a slight increase in noise and humming when I have the windows down at higher speed, but with the windows up I haven't heard any new noise. They're nice tires.

35x11.50r20s on a stock 2500HD. No lift, no level.

A flat Good Year Wrangler SR-A set the tire shopping in motion, and a 10% off sale on Nittos convinced me to try the 35x11.50r20 Ridge Grapplers. My goal was to get as much tire as possible without having to adjust the suspension so as to retain the stock ride, keep costs down, and achieve the aesthetic I like for modern 4x4 trucks. I was prepared to crank the front keys a few turns for up to 1" of leveling, but my preference was to avoid this if possible. Ridge grapplers have two sidewall designs on the tire; one side reminded me of Transformers, so I went with the more subdued sidewall. This doesn't impact fitment. After about 20 miles of driving and some parking lot testing turning the steering back and forth, the tires fit fine with only a few close spots throughout the range of motion. I've seen people report frame rub at full lock with these sizes; it hasn't happened to my truck yet, but I wouldn't be surprised if it rubs mildly while turning sharply over rough terrain. Rear clearance is fine. A few tips: Check the actual dimensions of the tire you're choosing. The Nittos are 35s, but the actual diameter is about 34.7". Each manufacturer is a little different, and most list the true dimensions on their websites. The same applies to metric sizes - a BFG may be narrower than a Toyo. Looking at my truck, 35x12.50r20 would have fit too, but would probably rub on the wheel wells while going over bumps during a turn. The 11.50s provide just enough extra room that my truck has yet to rub, though my mileage count is low (20 miles since install) so I'll update this thread as I add miles. Expect to lose fuel economy. No data yet, but I anticipate a 1-2 MPG drop. Aftermarket wheels change everything. The popular offset or "poking" look makes it harder to stuff big tires without a lift. If you're changing wheels and tires, disregard this thread. What's next? Fresh oil, a detail, and maybe a front window tint. I'd like a Corsa, but they're $$$. Please excuse the dirty truck:

Are these 275/65/20 BFG KO2s?

I have the same color on my 2015 - I thought it was one year only, though. Your truck is a 2019? I don't see it on Chevy's website. I'd love to see them continue it, though, because Rainforest Green Metallic is awesome.

Thanks! You could only get it on the 2015.5 HDs. It was also briefly available on the 1500s (2015), the Camaro (2015 Green Flash Edition), the 2014 Corvette (Lime Rock Green), and the 2014-2015 Cruze. In certain light, it can look almost black, but in the right light it pops nicely.

My 2015 in Rainforest Green Metallic. I love this color; it was only available for half of 2015. I need to get bigger tires on it. I'm on instagram as @kurtkphoto

That's good to hear, though somebody else on duramax forum is saying I need a 2" level to run them. In the interim, I did find this truck sitting on 285/65/20 BFGs and it claims to have some sort of level, though it appears to be quite subtle. I wonder if they would fit at stock stance. My truck has a good bit of rake.

Looks cool, glad it works, too. I called a shop asking for a small level on stock keys with 35x12.50 install and they said they can only do 35s on Silverados with a 4" lift! I asked about the forum trucks on 35s and they said they don't work, drive bad, etc... yet here are examples of trucks that work. I'm ok with some small rubbing at full steering lock. Interestingly, BFG 285/65/20 are a 34.5x11.20 equivalent, while BFG 35x12.50 are truly 34.5x12.50 (BFGs website shows their 35s being 34.5" in diameter).

From my instagram, kurtkphoto:

Anybody running 285/65/R20 on a stock height truck, no level?

This photo is almost a year old, but I miss Death Valley: Yeah, I need to upgrade the tires and maybe raise the front half an inch... maybe 285/60r20s... also need to replace the rear bumper as my chrome insert was dented in a parking lot. Oh well.

Nice truck, Slimpim! What tires are you running?

From my instagram, @kurtkphoto: Looking west into Death Valley, CA from Nevada:

Thanks. The 2500 starts with a 1 (built in MI), the 78 has a different convention. It was built at the GM Lakewood Assembly in Atlanta, GA.

Haha, oops. Sorry. Edited it. Guess my eyes weren't so trusty...

The Trusty Truck To keep it K2X related, a smooth riding K2X 2500: