LT285-75-17s on Stock 2018 Dually - Chevy and GMC Duramax Diesel Forum
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post #1 of 4 (permalink) Old 11-21-2018, 11:08 AM Thread Starter
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Join Date: Oct 2016
Posts: 21
LT285-75-17s on Stock 2018 Dually

Just posting this as I have seen lots of thread with guys asking the question (myself included) with no solid answers. I would say this is the largest tire you can run on a 2015+ body style dually that is stock height. My torsion keys are cranked a bit and I have absolutely no rub despite how close things are (I think they would fit without rubbing without the keys touched at all). I had to run a 1.5" spacer (hubcentric) between the duals but that was painless to install (just have to cut the wheel studs down a bit - just the unthreaded part needs to be cut).

I have happy with the look and the rear tire is not out aggressively far as I have seen with the 2" spacers. Judging by how close the inside tire is to the leaf spring, I do not think you could run any wider tires on the stock rims - I may be wrong but these are as wide as I'd be comfortable going after looking at it installed. Heres some quick photos.








2018 Chev 3500 CCLB Dually 4x4
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post #2 of 4 (permalink) Old 11-21-2018, 03:56 PM
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Join Date: Dec 2016
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Thanks for posting this! I always see these tires on leveled trucks, I'm glad to see they fit on a stock truck. Definitely going with these when my current tires are up for replacing

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post #3 of 4 (permalink) Old 08-13-2019, 12:06 PM
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Join Date: Jul 2013
Location: Alberta, Canada
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Do you have much room between your back wheels and back flaps? Mine seems pretty tight with stock tires and the same flaps as it is now....
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post #4 of 4 (permalink) Old 08-30-2019, 11:10 PM
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Location: Medford, Oregon
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If you need set back style mud flaps check out DuraFlap. We have the stainless brackets to move the mud flaps back away from the tires both for front and rear.
If you have plenty of room but need wider mud flaps to cover your tires we custom shift and size our drill-less mud flaps to cover your tires completely to protect your truck and tow vehicle.
Attached Images
File Type: jpg lifted Chevy Dually inside fenderwell email.jpg (438.3 KB, 16 views)
File Type: jpg 2015 GMC 3500 Dually punisher rear.jpg (270.4 KB, 16 views)

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