37's or 35's ??
JK Enthusiast
Joined: Oct 2008
Posts: 368
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From: 33N36'47", 96W24'48"
37x12.50x17 tire weights (a few of these are 13.50)
BFG KM2 - 71.6#
Yokohama Geolander M/T -71.6#
Goodyear MT/R w/ Kevlar - 76#
Interco TrXus M/T - 78#
Interco Irok Radial - 81#
Mickey Thompson MTZ - 83#
Pro Comp M/T - 84.4#
Toyo Open Country M/T - 92.6#
Cooper Discoverer STT - 83#
Nitto Mud Grappler - 92.8#
JK Freak
Joined: Apr 2010
Posts: 992
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From: jonesboro, AR
Originally Posted by ARinmyJK
Found this on another forum so I'm not sure of the absolute accuracy. I have the 37x12.5R17 GY MT/R w/Kevlar and they "feel" about 100 lbs mounted with wheel.
37x12.50x17 tire weights (a few of these are 13.50)
BFG KM2 - 71.6#
Yokohama Geolander M/T -71.6#
Goodyear MT/R w/ Kevlar - 76#
Interco TrXus M/T - 78#
Interco Irok Radial - 81#
Mickey Thompson MTZ - 83#
Pro Comp M/T - 84.4#
Toyo Open Country M/T - 92.6#
Cooper Discoverer STT - 83#
Nitto Mud Grappler - 92.8#
JK Super Freak
Joined: Apr 2009
Posts: 1,139
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From: Tulsa, OK
Originally Posted by jvandy50
That's exactly what I've been wondering. I have 35 toyos and know they are heavy, and I think 37s fill the 4dr out better. I'm just having problems finding the weight of 37 mtr w Kevlar. Those are what I'm eyeing.
So I guess the question is, what kind of tires is the OP wanting to run?
DuraTrac = 315/70R17 overall diameter 34.4 weight 63.47lbs
Fierce Attitude MT = 35x size overall diameter 34.8 weight 62.86lbs
= 37x size Not available
= 265/70R17 overall diameter 31.7 weight 49.86
= 285/70R17 od 33.0 weight 53.9
Wrangler MT/R with Kevlar 35x size OD = 34.8 weight 65.49
37x size OD = 36.8 weight 75.05
JK Freak
Joined: Apr 2010
Posts: 992
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From: jonesboro, AR
Originally Posted by JKAddiction
I was thinking of going with the Nitto Trail Grappler.... ALthough it is a heavier tire... I think 35's weigh in the range of 81 lbs..... ugh...
JK Enthusiast
Joined: Mar 2009
Posts: 307
Likes: 1
From: Portland, ME
Hello all. I cant decide between running 37's or 35's. I drive a 2010 jk unlimited mountain edition. Will be purchasing a Rock Krawler 3.5 mid arm x-factor lift kit soon. What more would I have to do to run 37's compared to 35's. I do plan to regear in the near future, and already have the superchips... Unfortunatley I do have a D30 front axle. If I only found this forum BEFORE I bought my first Jeep, I would have known better... Thanks in advance for any help you can give me with this.... oh yeah, this is also my daily driver...
JK Super Freak
Joined: Apr 2009
Posts: 1,139
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From: Tulsa, OK
This goes back to weight too though. This is my point exactly. A heavier 35 is easier to turn on start and stops in size of roatation buuuuut in some 35s they can weigh 15 lbs more than a 37 inch tire. That tire weight for 10 lbs more in each tire is 100 lbs essentially added to Jeep weight. So that weight burns fuel..... you could possibly choose a light 37 that would give you less weight than your 35s. Best option is choose the lightest 35 obviously to get more power and less weight. 37 in a BFG is 4 lbs lighter than a 35 so really adding 160 lbs to your jeep if you want to look at like that.... thats if you compare those two tires.....
Thread Starter
JK Enthusiast
Joined: Sep 2010
Posts: 119
Likes: 3
From: Alden,NY
Word of caution, when it comes to backspacing be sure your verify what the lift manufacture calls for, the post above advised you to go with "Second, a set of larger number offset wheels are also needed." You factory rims should have ~6" backspacing, most lifts recommend 4.5" backspacing which will move the rim farther out from the frame. If you go with a "larger number offset wheels" you will move the wheel closer to the frame and create major rub.
You did not say what type of wheeling you do mall crawling, rock crawling, mud pits, FS roads??? These are factors that should be considered when deciding tires.
There are a lot of post that say 37's fill an unlimited better. The unlimited and 2dr have the exact same size wheel openings, just 2 doors different. There are 35's that will out perform 37's any day for traction.
Also keep in mind, any time you mod your rig you will find the next weakest link, in your case the D30 will most likely be it.
If you are worried about the extra 1" belly clearance consider a 3.5" lift or go with the 2.5 and 1" spring spacers or a 1" BL. You will be happier wheeling with 35 that you will having your 37's on a tow truck.
Just my 2 cents.
Remember with free advise you get what you pay for... opinions.
You did not say what type of wheeling you do mall crawling, rock crawling, mud pits, FS roads??? These are factors that should be considered when deciding tires.
There are a lot of post that say 37's fill an unlimited better. The unlimited and 2dr have the exact same size wheel openings, just 2 doors different. There are 35's that will out perform 37's any day for traction.
Also keep in mind, any time you mod your rig you will find the next weakest link, in your case the D30 will most likely be it.
If you are worried about the extra 1" belly clearance consider a 3.5" lift or go with the 2.5 and 1" spring spacers or a 1" BL. You will be happier wheeling with 35 that you will having your 37's on a tow truck.
Just my 2 cents.
Remember with free advise you get what you pay for... opinions.