40" tires on stock axles.

kosinar

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Anyone running 40 inch tires on stock diesel axles? If yes, what lift and tires?
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Stellar

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Running 40x13.5R17 Mickey Thompson Baja Pro XS tires. Suspension is a 4.5" EVO High Clearance long arm kit. Only dropped in a K & N, engine pulls great, and the ride is much better than stock.
 
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kosinar

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Running 40x13.5R17 Mickey Thompson Baja Pro XS tires. Suspension is a 4.5" EVO High Clearance long arm kit. Only dropped in a K & N, engine pulls great, and the ride is much better than stock.
Thanks. I am on 37 Cooper STT Pro and will have to replace them soon. I got only 25,000 miles on them and i hope them to last 2,000 more. Not sure i want a nother set. Thinking 38” or 40”.
 

Rangemaster

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I am planning on 40s on stock rubi axles. already rock krawler 3.5 and moving to spacers from teralex. What do you think?
 

grostage

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40” Goodyear MT/R on 3.5 metal cloak game changer. Diesel drives fine on big tires , just watch your oil pressure if you lug the engine often
68DDFFE0-48A2-4185-AD04-0EFA8615AF67.png
can you explain "lugging" and what happens to oil pressure?
 
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kosinar

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I am planning on 40s on stock rubi axles. already rock krawler 3.5 and moving to spacers from teralex. What do you think?
Not sure how much clearance you got from RC 3.5" lift. I have Mopar 2" diesel lift. Works fine for 37" Coopers. I will find out what I have to do to clear 40s. I will most likely stick with Coopers. Was contemplating Milestar but I live on east coast. Occasional mud and water is not where they shine.
 

Stellar

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Not sure how much clearance you got from RC 3.5" lift. I have Mopar 2" diesel lift. Works fine for 37" Coopers. I will find out what I have to do to clear 40s. I will most likely stick with Coopers. Was contemplating Milestar but I live on east coast. Occasional mud and water is not where they shine.
I would recommend a 1.25" body lift. There's so many pros to adding a subtle lift and I always include that as part of my builds to compliment a moderate suspension lift.

I'd also highly consider 40" MT Baja Boss or Nitto Trail Grapplers as well. From first hand experience they're great tires for conditions all around..
 

hoag4147

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Not sure how much clearance you got from RC 3.5" lift. I have Mopar 2" diesel lift. Works fine for 37" Coopers. I will find out what I have to do to clear 40s. I will most likely stick with Coopers. Was contemplating Milestar but I live on east coast. Occasional mud and water is not where they shine.
Start by gutting the flares. Some trimming in rear and there ya go :)
 

Rangemaster

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Not sure how much clearance you got from RC 3.5" lift. I have Mopar 2" diesel lift. Works fine for 37" Coopers. I will find out what I have to do to clear 40s. I will most likely stick with Coopers. Was contemplating Milestar but I live on east coast. Occasional mud and water is not where they shine.
I currently have 37’s on my jeep right now. I might just move up to 38’s as I just picked up some 4.10 gears for cheap.
 

2020 Rubi Diesel

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I'm contemplating getting 37 or 39 on my jlurd with the mopar 2+ lift. Everything else is stock. I bought method 305 with the 0 offset. I'm not worried about breaking axles, I'm worried about rubbing.
 
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