Sponsored

40" tires on stock axles.

kosinar

Well-Known Member
First Name
Joe
Joined
Apr 3, 2018
Threads
18
Messages
216
Reaction score
180
Location
South Carolina
Vehicle(s)
2020 Black JLUR 3.0 EcoDiesel received 3/6/20
Anyone running 40 inch tires on stock diesel axles? If yes, what lift and tires?
Sponsored

 

Stellar

Member
Joined
Apr 27, 2021
Threads
0
Messages
10
Reaction score
15
Location
Utah
Vehicle(s)
'21 JLURD; '20 Denali 3500; Hummer H2; Huracan
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.
 
OP
OP

kosinar

Well-Known Member
First Name
Joe
Joined
Apr 3, 2018
Threads
18
Messages
216
Reaction score
180
Location
South Carolina
Vehicle(s)
2020 Black JLUR 3.0 EcoDiesel received 3/6/20
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

Well-Known Member
First Name
Brian
Joined
Oct 20, 2020
Threads
24
Messages
996
Reaction score
1,822
Location
Nevada
Vehicle(s)
2020 JL Rubicon Diesel
Build Thread
Link
Occupation
Business Owner
I am planning on 40s on stock rubi axles. already rock krawler 3.5 and moving to spacers from teralex. What do you think?
 

Sponsored

grostage

Well-Known Member
Joined
Apr 20, 2021
Threads
3
Messages
69
Reaction score
63
Location
Yellowknife NWT Canada
Vehicle(s)
2021 Jeep Wrangler Rubicon 3.0L ecodiesel
Occupation
Millwright/Welder
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
Jeep Wrangler JL 40" tires on stock axles. 68DDFFE0-48A2-4185-AD04-0EFA8615AF67
can you explain "lugging" and what happens to oil pressure?
 
OP
OP

kosinar

Well-Known Member
First Name
Joe
Joined
Apr 3, 2018
Threads
18
Messages
216
Reaction score
180
Location
South Carolina
Vehicle(s)
2020 Black JLUR 3.0 EcoDiesel received 3/6/20
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

Member
Joined
Apr 27, 2021
Threads
0
Messages
10
Reaction score
15
Location
Utah
Vehicle(s)
'21 JLURD; '20 Denali 3500; Hummer H2; Huracan
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

Well-Known Member
First Name
Rick
Joined
Dec 13, 2019
Threads
64
Messages
4,398
Reaction score
6,001
Location
Colleyville, TX
Vehicle(s)
2022 JLUR XR
Vehicle Showcase
2
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

Well-Known Member
First Name
Brian
Joined
Oct 20, 2020
Threads
24
Messages
996
Reaction score
1,822
Location
Nevada
Vehicle(s)
2020 JL Rubicon Diesel
Build Thread
Link
Occupation
Business Owner
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.
 

Sponsored

2020 Rubi Diesel

Well-Known Member
First Name
Aaron
Joined
Jul 16, 2021
Threads
1
Messages
137
Reaction score
81
Location
Southern IL
Vehicle(s)
2020 JLURD
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.
 
 



Top