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Unread 07-03-2013, 01:36 PM   #1
Bigdude408
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MUDs or all terrains?

Us 4 banger guys are starved for power. I know the mods to the motor don't do much, but I already have a 4.0 tb and a date with a exhaust shop to put 2.5" all the way back a flow master and a high flow cat.
My plan is to put 33x10.5's on a set of factory mag wheels, theory being the narrow tires will weigh less. Not many choices on kinds of tires though so I narrowed it down to bfg all terrains or km2's.
this jeep is my daily driver, but a weekend warrior, and a major lack of rocks but plenty of mud. I don't try to follow friends with 454's and 60" + tractor tires, I just trail ride out there and video the guys killing there rigs.
Now my question comes..... I've heard the km2's wear pretty well, but will it effect felt power or gas mileage? Would the drag feel much different. It's a $20 difference so I would like to go with the MUDs, then again if it makes a big difference on road ill go with the alls.

Any other sudgestions on tire brand will be considered.
Thanks

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Unread 07-03-2013, 01:40 PM   #2
JBTJ
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Going from 32's to 33's will be noticeable. I would think that the AT would have less rolling resistance.
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Unread 07-03-2013, 01:47 PM   #3
bfaas
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I have had both.

I really enjoyed the BFG ATs I had but that was also when my jeep was my daily driver and I did a lot of highway driving. They are a much smoother and quieter ride but they still did great off road.

Since your jeep is your DD I would suggest getting ATs. They will last longer and be a more enjoyable ride and you will still be able to have some fun on the weekends.

Just my .02
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Unread 07-03-2013, 01:55 PM   #4
chmo
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a light(!) tire with a semi agressive AT tread would be my choice ...
like e.g. the GY wrangler duratrac or the cooper AT3 ... don't know if they come in your desired size though.

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Unread 07-03-2013, 02:09 PM   #5
TheBoogieman
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I hate AT's and their non aggressive looks,especially BFG ATs with their "Rat maze" pattern.Go with the BFG KM2 33x10.50" and regear to 4.88s to help the 4 squirrels out a bit.I've had KM2s and BFG ATs,4 bangers and 4.0s.You won't notice any difference in power with either tread tire.The AT's aren't any more quiet than the KM2s.They might last 50,000 miles compared to 35,000 miles if that's a concern.I prefer aggressive look over mall crawler ATs.You stated rocks and plenty of mud.The KM2s are your only choice.BFG ATs are only good for street and snow.
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Unread 07-03-2013, 03:35 PM   #6
26679cj5
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I've ran the 31x10.50at and the 33x10.50 at right now , and yeah they're just a DD tire. They do just OK when brand new off road, but after some wear they begin to suck quickly.
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Unread 07-03-2013, 03:44 PM   #7
TheBoogieman
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Quote:
Originally Posted by 26679cj5 View Post
I've ran the 31x10.50at and the 33x10.50 at right now , and yeah they're just a DD tire. They do just OK when brand new off road, but after some wear they begin to suck quickly.
The only thing that makes tires noisey and suck is improper Psi,alignment or bad driving.I drive my Jeeps like a sports car and front tire wear is noticeable within a few weeks.
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Unread 07-03-2013, 03:56 PM   #8
26679cj5
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Quote:
Originally Posted by TheBoogieman View Post
The only thing that makes tires noisey and suck is improper Psi,alignment or bad driving.I drive my Jeeps like a sports car and front tire wear is noticeable within a few weeks.


That's not even remotely close to what I was saying. They are an OK dd tire but their off road benefits just aren't there. I have seen them ran out west on gritty rocks and do OK, but anywhere with a lot of mud or wet rocks and they're worthless.
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Unread 07-03-2013, 05:05 PM   #9
Bigdude408
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4.88's are in my future, but I'm trying to find some dana 44's on the used market first.
50k out of street tires are not possible where I'm from. My cars only get 30 and my 3/4 ton only gets about 12k lol.
Gotta love these turns

Noise isn't a problem, my daily drive to work is 14 miles, 5's on black tip 9's on a gravel road. I'm sure I will notice some, 32 11.5s to 33 10.5s but I'm hoping not much since I'm going thinner. I was wondering the risistance the k2's would have, I know there not swampers but they are more aggressive them the "rat maze" ( lmao I like that)
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Unread 07-03-2013, 05:19 PM   #10
26679cj5
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If you would happen to want to stay with 31s until you can do gears or axles/gears, Walmart has an inexpensive line of good years that is an at/mt hybrid that I think you would like.
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Unread 07-03-2013, 05:50 PM   #11
Bigdude408
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So I looked up some specs, A new set of kuhmo mt's in the size I have on now, 32x11.5's, say they weight 53lbs.

Looking up the km2s spec it says it weighs 44lbs

I refuse to go down a size! Lol like I probably should.
So do bigger tires just rob your power because of weight, or does actual diameter come into play?
From all the reviews, it seems like 33x10.5 would fit my role pretty well.
I do have 4.10s now, so hopefully I will get by.

On another note, the bfg's at weight 47lbs so hummm.
Another Pluss for km2s
Either way a full review will happen after I get them mounted
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Unread 07-03-2013, 06:21 PM   #12
26679cj5
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Yeah weight, width, and tread pattern all play into it. I didn't want to go down a size either, but I wasn't going to be able to go up to 35s this time around, so I went from 34x9.50 swampers down to 33x10.50 at until later this year when my frame and axle swap is done.
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Unread 07-04-2013, 10:35 AM   #13
Bigdude408
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Note, I just put my tiny stock tires on (they came with the jeep) never knew it could go 70. Lmao
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Unread 07-04-2013, 12:00 PM   #14
TheBoogieman
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Buy a real Jeep with a 4.0 and stop posting crap stuff.If you were Joey Chestnut,you'd be my hero Dog!
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Unread 07-04-2013, 02:45 PM   #15
Knuckelhead
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Quote:
Originally Posted by Bigdude408 View Post
So do bigger tires just rob your power because of weight, or does actual diameter come into play?
Both come into play, the larger diameter more so. IMO
Quote:
Originally Posted by Bigdude408 View Post
From all the reviews, it seems like 33x10.5 would fit my role pretty well.
I do have 4.10s now, so hopefully I will get by.
With 33" tires, your 2.5L engine and 30RH transmission. 4.56's might be a good idea...
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