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After reading hundreds of posts about wheels and tires with no definitive answer, I wanted to let the forum know that a LT295/70R18 Ridge Grappler will fit on a 2018 4x4 3500 with no rubbing, no trimming, and no turns on the torsion bars. This tire is 34.29 tall and 11.77 wide, so I was surprised. No rub at full lock in either forward or reverse.

I am very happy with this tire on a totally stock truck, and my local discount tire was the cheapest and super accommodating in trying trie sizes.

Very happy to get the stock michelins off as they were in pretty bad shape at 12,000 miles.
 

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You can put taller tires on the newer GM trucks, you guys are lucky being able to go with tires a little taller without cranking/lifting.
I’ve had my 295/55R20 Ridge Grapplers on one year ago, specs show 32.76 tall but actual height is 32.20 tall 11 1/2” wide tread actual measurement. :thumb
I had 285/70R17 G2’s same specs and same actual measurements except the tread was 10” wide.
Both rub a little even with a 4” lift front only, the rear is still just a fraction higher without any lifting.
 

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Both rub a little even with a 4” lift front only, the rear is still just a fraction higher without any lifting.
I hear you. The keys on my 2003 were cranked all the way (I would not do that today) to accommodate a sub 33" tire (don't remember the size) and rubbed at lock until I sold the truck.

Hopefully this Ridge Grappler holds up--with the torque these trucks have, I seems to chew up tires pretty quickly.
 

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Originally I had a leveling kit cranked pretty much maxed out, I lived with that for about 5 years.
Finally opened up my pocket book and went with Cognito 4” non torsion bar lift.
Best move I’ve made, should’ve done this after I bought my truck 6/2007.

On your tires lasting 'dunno; that’s something you gots to discuss with your right foot. :smile2:
 

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After reading hundreds of posts about wheels and tires with no definitive answer, I wanted to let the forum know that a LT295/70R18 Ridge Grappler will fit on a 2018 4x4 3500 with no rubbing, no trimming, and no turns on the torsion bars. This tire is 34.29 tall and 11.77 wide, so I was surprised. No rub at full lock in either forward or reverse.

I am very happy with this tire on a totally stock truck, and my local discount tire was the cheapest and super accommodating in trying trie sizes.

Very happy to get the stock michelins off as they were in pretty bad shape at 12,000 miles.
Thank you for posting up some photos of your awesome truck. Looks like the tires fit great. We appreciate you giving a shout out to the local Discount Tire guys. They always work hard to help all our customers. thumbup
 

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After reading hundreds of posts about wheels and tires with no definitive answer, I wanted to let the forum know that a LT295/70R18 Ridge Grappler will fit on a 2018 4x4 3500 with no rubbing, no trimming, and no turns on the torsion bars. This tire is 34.29 tall and 11.77 wide, so I was surprised. No rub at full lock in either forward or reverse.

I am very happy with this tire on a totally stock truck, and my local discount tire was the cheapest and super accommodating in trying trie sizes.

Very happy to get the stock michelins off as they were in pretty bad shape at 12,000 miles.
I am very interested to hear your feed back on this now that you've been running them for awhile. I too am about to replace my tires and wanting to go 295/70/r18 I have a 2017 midnight edition that comes stock with black 18" rims. This thread is about the ONLY thread that mentions this size on stock rims, WITH NO lift/level etc. However I can't find anything on how they've held up. Any problems with rubbing or bottling out? Has the tread lasted? noise issues?
 

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Can you post some photos?
 

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Sorry I see them at the top. Do you have a front or rear shot to show if they stick past the fenders at all? Nice looking truck btw!
 

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They haven’t had the tires on long enough to answer your held up questions.
I’ve had my 295/55R20 Ridge Grapplers on for 1 1/2 years with over 10,000 miles about 3/32 wear on them out of 16/32 tread when new.
I’m happy with the ride, looks and wear. :thumb

There’s really not that much difference between the sidewalls, you have to be really picky to notice.
Even Discount did 3 one way 1 the other, I really couldn’t tell and now I don’t even care, the tire still does it’s job.
 

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D_R_C thank you for the info. However the Original poster has had these size tires on for 7 months, that is plenty of time to get a feel for these tires. My interest is not in the tires size in general, it is the tires size on HIS stock truck as I have a 2017 and his is a 2019 (newer models). I already have friends with that size tire on different models/brands of trucks but again I would like to know how they are holding up (any rubbing, pre mature wear, rough, or noisy) specially on his truck or any other 2017-2019 STOCK truck with 18” rims.
 

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No problem just trying to help, the OP hasn’t posted on this forum since his first post on this thread, 5/24/19.

The OP already said in his post #1 no rubbing, no lifting.
The tire or any tire won’t care what rim they're put on, only that the rim is wide enough for safety reasons.
Here’s Nitto’s Ridge Grapplers spec sheet which includes recommended rim widths.
If your wheels aren’t wide enough the tire shop probably won’t mount them, I know Discount won’t.

https://www.nittotire.com/light-truck-tires/ridge-grappler-light-truck-tire/

If your interested in whats the best psi to run in your tires when empty, do the chalk method, several discussions on this.
 

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I put a set of 35/11.5/20 on my 2018 2500HD. I've got around 45k on them and could get about another 5 if I push it. My only complaint is that 2 of the tires will not balance now so I have a slight vibration between 65-72. I am getting ready for a new set and form looking at reviews from different brands I think I will stick with these but drop to a 33 in lieu of the 35.
 

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I put a set of 35/11.5/20 on my 2018 2500HD. I've got around 45k on them and could get about another 5 if I push it. My only complaint is that 2 of the tires will not balance now so I have a slight vibration between 65-72. I am getting ready for a new set and form looking at reviews from different brands I think I will stick with these but drop to a 33 in lieu of the 35.
Did you have the 12 ply rating? I had a set of 33's go 95k miles for me but they was 12 ply. Just curious

Sent from my SM-G977U using Tapatalk
 

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I appreciate the input here. I was able to successfully guide my tire shop to get the right size for my truck in the tires I wanted. I have used Cooper Discovery AT/3’s on my ‘08 2500 and loved them. Great warranty and as long as you keep them rotated they last 60k+. (On my 3rd set now) so I wanted a set on my new truck and I was able to get the 295/17/18’s to fit perfectly. Photos attached with no modifications to the truck body. Thanks for the information.
 

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295/70/18 will fit a stock 2017 3/4 ton with stock 18” rims without rubbing.

just like most everyone here I have searched and searched till I was at my wits end to see what Was the biggest tire I could get on my stock truck with stock 18” rims without any rubbing at all. Jarbidge the only one who said YES, (I saw another poster say yes on his truck too, however it seems he had them on for a very short amount of time which Did nothing but give me doubts on Them actually fitting).

With that being said let me be transparent in saying I was so doubtful that This tire wouldn’t fit/rub that I decided to order a zone level kit and new shocks just Incase. I wasn’t the only one either, when the tires came in, the shop called me to say that there is no damn way the tires would fit. I asked them to please try it B/c others are saying it could be done. They called back and said they couldn’t believe it, not only did they fit, but they didn’t rub at all with the stock suspension. They asked what to do about the level kit, and I said f’ it I bought it go ahead and install it, but only go 1 1/4” not the full 2”.

Again, I had already purchased a zone level kit and new blistein 5100 shocks front & rear. so I decided to go ahead and have both installed to see how it would look/drive. I was not disappointed at all, I drove approximately 90 miles from the shop to work then home. I am kicking myself in the ass for not doing this earlier. I knew the stock rancho shocks were complete crap, but I had no idea how bad they were until I drove home. No jarring, no back end bouncing all over once hitting a pot hole or speed bump... nothing, it was a nice smooth ride. I truly am surprised how huge of difference the ride is now. ** if you think your truck rides like crap, do yourself a favor and replace those horrible stock rancho shocks with aftermarket ones**

Once home I measured everything out front/rear versus stock. Stock I had a 2.5” rake, now I have about a 1/4” rake. Looks awesome. However I think I’m going to Go back and have them lower back down to get a little more rake (at least 1”) so my truck won’t squat while I’m pulling my trailers.

I’ll keep everyone posted on how the tires hold up etc. I drive about 500-800 miles a week so I’ll watch my mileage to see how badly these tires effect it. I’m one of those guys who resets my mileage every time I fill up so it shouldn’t take me long to see how much it’s changed.
 

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update on the 295/70/18 Nitto ridge grapplers: I was very unprepared for not only my speedo to be so far off at highway speeds, but how thrown off my shift points became. It killed my mpg and the truck was just not right. After installing the hypertech inline Speedo I’m back to normal shift points and my mpg’s have leveled out. With stock tires I was avg 18-19mpg regularly (21mpg on long road trips) with the 295’s I’m at a constant 16.5Mpg (haven’t taken it on a long trip yet) which I can live with. I drive 50/50 highway and city Everyday, and will admit I have a heavy throttle foot.

as far as ride or noise.... rides fantastic, ZERO road noise. again I can probably contribute most of the better ride quality to getting rid of the stock rancho shocks And having the recommended tire psi. When tires were installed they had my tires set to 70psi which I knew was too high being unloaded. I’ve had zero rub and haven’t ‘bottomed’ out on the droop brackets at all. Very happy with my setup, kicking myself for waiting so long to do it.

Hypertech Part number 730127 in-line speedometer calibrator
Tires PSI set per Nitto Technical Services Department 47psi front 55psi in rear
 
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