2021-1500 Rough county 3.5 lift-Tire Size Question

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harleyfish

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First Ram I've owned with 18 (18x8.0) inch rims, but putting 3.5 inch lift on front with leveled back. What size tire will fit without rub? Would like to go as big as possible with 10 ply, our travel trailer is heavy. 1st day on the forum, really like all the info! Thanks for y'all's help!
 
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Brianmp01

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I have a 2016 with the 3 inch rough country and I running 35s with no issue
 

Rlj2

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I just put a 3.5" readylift on my 2022 1500, then 285/65/R20s , almost 35"s. I havent crawled under it, but discount tire said it wasnt even close to rubbing on turns etc.
 

clays laramie

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You better be putting bags in if your going to tow with this setup. I would highly recommend doing a 4inch if towing a trailer..
 

TestPilot57

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Not exactly the same, but:

2020 1500 w/4CA suspension. 5" Rough Country lift. Stock wheels. 1/2 "spacers and I still get slight rub turned all the way to the Right. NOTHING to the Left... Truck is definitely not symmetrical...
 

DILLIGAF

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Put on a real 4" lift kit.
 

crazykid1994

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Not exactly the same, but:
2020 1500 w/4CA suspension. 5" Rough Country lift. Stock wheels. 1/2 "spacers and I still get slight rub turned all the way to the Right. NOTHING to the Left... Truck is definitely not symmetrical...
That can be due to the alignment. If one side is in more it’ll rub. My truck only rubbed a pinch when I had 35s and a 2” level. Had them set the caster up some and it cleared my rub. Has nothing to do with being symmetrical. It’s usually due to them setting the alignment to account for road crown
 

crazykid1994

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First Ram I've owned with 18 (18x8.0) inch rims, but putting 3.5 inch lift on front with leveled back. What size tire will fit without rub? Would like to go as big as possible with 10 ply, our travel trailer is heavy. 1st day on the forum, really like all the info! Thanks for y'all's help!
Im sure you are trying to keep the price down but you’re better off doing a true 4” kit to keep the rear axle degreed and aligned properly especially if towing or off-roading any. Pretty sure that’s what @DILLIGAF is trying to say. Plus 3.5” is hard in the front suspension and cv axles without a diff drop and you are really pushing the limits of suspension travel which can cause a noticeable harshness over bumps.
 

Rocky90

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I just put a 3.5" readylift on my 2022 1500, then 285/65/R20s , almost 35"s. I havent crawled under it, but discount tire said it wasnt even close to rubbing on turns etc.
I have a 2022 rebel no air ride suspension. And I’m looking to get the rough country 3.5 lift. My main concern is with this kit will I be able do 35x12.520’s?
 
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