37's to 38's, I am now worshipping the Patagonia throne

b1er

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My wife wanted to move up to 37's on her sport so I gave her my old 37 x12.5 MXT's with 7500 miles on them... I bought a new set of 38x13.5 Pats... just put them on a few minutes ago... I see now why the get alot of attention here. My Jeep has never had a ride this good... smooth, stable, and quiet... even my sloppy steering is better... My old tires were D rated and I know that's where most of the change came from but dang these things are good...

70627077_10205980713713700_3862071679605800960_n.jpg



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Carlton

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Both are awesome tires. Quiet, smooth, and stayed balanced. MXT is better in mud and Patagonia is better in winter.
 

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My wife wanted to move up to 37's on her sport so I gave her my old 37 x12.5 MXT's with 7500 miles on them... I bought a new set of 38x13.5 Pats... just put them on a few minutes ago... I see now why the get alot of attention here. My Jeep has never had a ride this good... smooth, stable, and quiet... even my sloppy steering is better... My old tires were D rated and I know that's where most of the change came from but dang these things are good...

70627077_10205980713713700_3862071679605800960_n.jpg
Off topic but what lift are you running?
 
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b1er

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a frankenstein mish mash of parts... MC 2.5 coils, Teraflex .5 spacer, RC lca's, falcon shocks, JKS and Rusty's track bars.
 

ChattVol

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a frankenstein mish mash of parts... MC 2.5 coils, Teraflex .5 spacer, RC lca's, falcon shocks, JKS and Rusty's track bars.
a frankenstein mish mash of parts... MC 2.5 coils, Teraflex .5 spacer, RC lca's, falcon shocks, JKS and Rusty's track bars.
Your Jeep looks great....I've ordered 37" milestar's and am looking at wheels with proper backspacing to allow solid flex with my 2.5" lift and want to purchase today. What backspacing are you running and how is flex/rubbing with 37s vs 38s? I'm not as crazy about the super wide look with tires 4" outside the fenders and am looking at wheels with a 4.5 or 4.75 backspacing. I'd like for the wheels to also be able to clear 38s, bc I'll prob go there next. Here's mine with 37s test fitted on the front and 35s on the rear. If(when) I go 38s, I'll do the Quake fender chop kit. Can you feel the difference in bigger/heavier 38s vs 37s in terms of braking/acceleration? Thanks. Also @Carlton and @TJEli would love your input.
p8Tw9f9.jpg

And turning at full lock with 17x8.5 wheels with 5.2 backspacing...would obviously change clearances flexing.
P3AoRCb.jpg
 
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Therby

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My wife wanted to move up to 37's on her sport so I gave her my old 37 x12.5 MXT's with 7500 miles on them... I bought a new set of 38x13.5 Pats... just put them on a few minutes ago... I see now why the get alot of attention here. My Jeep has never had a ride this good... smooth, stable, and quiet... even my sloppy steering is better... My old tires were D rated and I know that's where most of the change came from but dang these things are good...

70627077_10205980713713700_3862071679605800960_n.jpg
....how does the sport look with 37s? Does the wife wheel it? Just wondering the limit of the front axle in sport models
 

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Your Jeep looks great....I've ordered 37" milestar's and am looking at wheels with proper backspacing to allow solid flex with my 2.5" lift and want to purchase today. What backspacing are you running and how is flex/rubbing with 37s vs 38s? I'm not as crazy about the super wide look with tires 4" outside the fenders and am looking at wheels with a 4.5 or 4.75 backspacing. I'd like for the wheels to also be able to clear 38s, bc I'll prob go there next. Here's mine with 37s test fitted on the front and 35s on the rear. If(when) I go 38s, I'll do the Quake fender chop kit. Can you feel the difference in bigger/heavier 38s vs 37s in terms of braking/acceleration? Thanks. Also @Carlton and @TJEli would love your input.
p8Tw9f9.jpg

And turning at full lock with 17x8.5 wheels with 5.2 backspacing...would obviously change clearances flexing.
P3AoRCb.jpg
I'm running Fuel Zephyrs with 4.5 back spacing. I do not have any rubbing while turning. I did hear a bit of rubbing in the rear (2 inch lift) while going through an off camber gully. If I flip the bump stops on their sides, this should be eliminated. If you are rock crawling, you may have a different experience. I play in the mud and snow mostly, occasional trail.

This may sound odd, but the acceleration feels better with the larger tires over stock. I believe this is due to low gearing, 8 speed trans, combined with a short tire. Large tires matchup better and feel more natural/less buzz saw like due to the new RPM ranges.

You will feel a difference in braking from stock, however it is not bad. The JLUR comes with what was the big brake kit for the JK. Not sure you'd feel a difference between 37 and 38. If you have a sport with the smaller brakes it will be a noticeable decline. On the plus side, the Milestar tread pattern is great for braking compared to other MT tires.

Edit: I forgot you have the 6 speed. With 38s I'm pretty sure you would want to regear.
 

ChattVol

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I'm running Fuel Zephyrs with 4.5 back spacing. I do not have any rubbing while turning. I did hear a bit of rubbing in the rear (2 inch lift) while going through an off camber gully. If I flip the bump stops on their sides, this should be eliminated. If you are rock crawling, you may have a different experience. I play in the mud and snow mostly, occasional trail.

This may sound odd, but the acceleration feels better with the larger tires over stock. I believe this is due to low gearing, 8 speed trans, combined with a short tire. Large tires matchup better and feel more natural/less buzz saw like due to the new RPM ranges.

You will feel a difference in braking from stock, however it is not bad. The JLUR comes with what was the big brake kit for the JK. Not sure you'd feel a difference between 37 and 38. If you have a sport with the smaller brakes it will be a noticeable decline. On the plus side, the Milestar tread pattern is great for braking compared to other MT tires.

Edit: I forgot you have the 6 speed. With 38s I'm pretty sure you would want to regear.
Thanks...do you have a pic showing your jeep with 38s and 4.5 backspacing? What part was rubbing in the rear? I've got a heat gun and am going to reform the rear inner fender part in the rear portion that lowers clearance. I have rubicon brakes and 6 speed with 4.10s.
 

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Thanks...do you have a pic showing your jeep with 38s and 4.5 backspacing? What part was rubbing in the rear? I've got a heat gun and am going to reform the rear inner fender part in the rear portion that lowers clearance. I have rubicon brakes and 6 speed with 4.10s.
From what I heard the rear tire hit the liner or flare.

20191126_112145.jpg


20191012_140532.jpg
 
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....how does the sport look with 37s? Does the wife wheel it? Just wondering the limit of the front axle in sport models
It looks good... the furthest it will get off road is the gravel lot at my shop...lol.

70920313_10206007361979890_7408483578150912_n.jpg
 
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Your Jeep looks great....I've ordered 37" milestar's and am looking at wheels with proper backspacing to allow solid flex with my 2.5" lift and want to purchase today. What backspacing are you running and how is flex/rubbing with 37s vs 38s? I'm not as crazy about the super wide look with tires 4" outside the fenders and am looking at wheels with a 4.5 or 4.75 backspacing. I'd like for the wheels to also be able to clear 38s, bc I'll prob go there next. Here's mine with 37s test fitted on the front and 35s on the rear. If(when) I go 38s, I'll do the Quake fender chop kit. Can you feel the difference in bigger/heavier 38s vs 37s in terms of braking/acceleration? Thanks. Also @Carlton and @TJEli would love your input.
p8Tw9f9.jpg

And turning at full lock with 17x8.5 wheels with 5.2 backspacing...would obviously change clearances flexing.
P3AoRCb.jpg
Mine are 4.5"bs... they sit about 1.5-2ish inches outside the fenders and only rub the plastic in the rear since I haven't hit it with a heat gun to remold it... my 37's rubbed there also on the 2.5 spacer kit I had at the time... The 38's are actually a little lighter than the D rated 37's and I was able to immediately feel the difference... I've swapped to 4.88's so it's nothing like 38's on a stock gear... it runs pretty much the way it did stock but you do feel the added weight of the tires over the stock BFG's...
 

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Mine are 4.5"bs... they sit about 1.5-2ish inches outside the fenders and only rub the plastic in the rear since I haven't hit it with a heat gun to remold it... my 37's rubbed there also on the 2.5 spacer kit I had at the time... The 38's are actually a little lighter than the D rated 37's and I was able to immediately feel the difference... I've swapped to 4.88's so it's nothing like 38's on a stock gear... it runs pretty much the way it did stock but you do feel the added weight of the tires over the stock BFG's...
How are your Milestar Patagonia 38x13.50's lighter than the 37x12.50's? The milestar website has the 38s at 82 lbs and 37s at 71lbs.
 

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How are your Milestar Patagonia 38x13.50's lighter than the 37x12.50's? The milestar website has the 38s at 82 lbs and 37s at 71lbs.
A bit off topic, but I weighed the 38x13.50s. They weighed 78 pounds. Nice little bonus.
 

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OP, does your wife's sport have the M220 rear axle? just for street use or offroad as well?
id love to put 37s on my sport but am waiting till i upgrade to rubi axles eventually.
 

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How are your Milestar Patagonia 38x13.50's lighter than the 37x12.50's? The milestar website has the 38s at 82 lbs and 37s at 71lbs.
I’ll I’ve seen is that the 37’s are lighter as well. The 38 is an inch wider and obviously an inch bigger. Both of those things will add weight. I get that it has 2 fewer plies than the 37, but that won’t offset the added dimensions of the 38.
 

                           
























































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